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Files
DeveloperApple Inc.
Initial releaseSeptember 19, 2017; 8 years ago (2017-09-19)
Operating systemiOS 11 and later, iPadOS, visionOS[citation needed]
Available in33 languages[1]
List of languages
English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian, Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
TypeFile management

Files is a file management app developed by Apple Inc. for devices that run iOS 11 and later or iPadOS.[2] Discovered as a placeholder title in the App Store just prior to the company's 2017 Worldwide Developers Conference, the app was officially announced at the conference shortly thereafter. Files allows users to browse local files stored within apps, as well as files stored in cloud storage services including iCloud, Dropbox,[3] OneDrive, and Google Drive.[4] It allows for the saving, opening and organization of files, including placement into structured folders and sub-folders. iPadOS and recent versions of iOS are able to drag-and-drop files between Files and other apps, while iOS versions before iOS 15 are limited to drag-and-drop inside Files itself.[5] Further organization can be done through the use of color-coded or custom-named tags, and a persistent search bar allows for finding files inside folders, though not inside other apps. A list view enables different sorting options. The app offers the exclusive playback of high-quality FLAC audio files, and also offers support for viewing text files, images, "Music Memos", and Zip archives, as well as limited support for video.

History

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Hours before Apple's June 5, 2017 Worldwide Developers Conference, developer Steve Troughton-Smith discovered a placeholder title in the App Store for a "Files" app, requiring iOS 11.[6][7] Apple officially announced the app at its conference shortly thereafter.[8][9]

Features

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Files allows users to browse local files stored within apps, as well as files stored on cloud storage services including iCloud, Box, Dropbox,[8] Google Drive, OneDrive, and more.[10] Users are able to save, open, and organize files,[10] including placing files into structured folders and sub-folders.[8] On the iPad, users can drag-and-drop files between the Files app and other apps. On the iPhone the functionality was initially limited to only inside each respective app[11] but was later updated to behave like on the iPad.[5] Users can add colored and custom-named tags to files, adding them to a dedicated "Tags" section.[12] A persistent search bar at the top enables finding files inside sub-folders, though it doesn't search within other apps.[13] A list view enables optional sorting according to size or date.[14]

Upon long-pressing a file, the app offers several options, including "Copy", "Rename", "Move", "Share", "Tags", "Info", and "Delete".[13] Files stored on third-party services can be copied to the device for offline access.[12] iCloud Sharing is brought out from Apple's dedicated iWork apps to become a standardized feature across the operating system, enabling the sharing of any file in Files; the dedicated "iCloud Drive" app is removed, replaced by Files, with iCloud available as one of the cloud storage providers users can connect the app to..[12]

A built-in player inside the Files app allows for the playback of high-quality FLAC audio files.[15][16] The app also supports the viewing and extraction of Zip archives.[17] If no compatible app is installed, Files allows for the viewing of text files, and experiments in watching videos in AVI or MOV formats have shown limited, but partially successful, results.[13] Images and "Music Memo" files can also be previewed and played.[13]

See also

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References

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[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia
from Grokipedia
Files is a file management application developed by Apple Inc. for iOS and iPadOS devices, introduced with iOS 11 in September 2017, that enables users to browse, organize, and access files stored locally on the device, in iCloud Drive, or via third-party cloud services such as Dropbox and Google Drive. The app provides a unified interface for managing documents, images, videos, and other file types, supporting features like folder creation, file renaming, compression into ZIP archives, and sharing via AirDrop, Messages, or Mail. Prior to , iOS devices lacked a dedicated , relying instead on app-specific storage and for file handling, which often fragmented user access to documents across applications. The Files app addressed this by integrating with the Files system introduced in , allowing seamless file operations across apps and devices signed in with the same . It supports connectivity to like USB drives and SMB servers, making it versatile for professional and personal use. On , Files benefits from the larger screen and multitasking features, such as Split View and Slide Over, enhancing productivity for tasks like document editing alongside other apps. The app also includes tabs for Recents, Shared, Tags, and Downloads, providing quick access to frequently used or recently modified files. Security features include or authentication for protected folders, ensuring sensitive files remain private. Files integrates deeply with Apple's ecosystem, syncing content via across , , and Mac, where it appears in the Finder sidebar under iCloud Drive. While macOS uses the Finder as its primary , Files on / complements it by enabling cross-platform without additional software. Recent updates, such as those in iOS 26 and iPadOS 26 (as of September 2025), have added customizable folder icons, enhanced search capabilities, a revamped List view with resizable columns, and other organization improvements.

Overview

Purpose and Core Functionality

Files is Apple's built-in file management application designed for and devices, serving as a central hub for users to access, organize, and interact with files across local device storage, cloud services, and external drives. It provides a unified interface that consolidates disparate storage locations, allowing seamless without the need for multiple dedicated apps. Introduced with , Files replaced the standalone iCloud Drive app, standardizing file access through a single, integrated interface that supports local files alongside cloud-stored content. This evolution addressed the limitations of siloed storage by enabling a more cohesive experience, where Drive functions as the default cloud backend. At its core, the app's revolves around intuitive file handling: users can browse content in grid or list views, create and nest folders or subfolders for organization, and perform essential operations like renaming, moving, or deleting files. A key feature is the ability to preview various file types—such as documents, images, and spreadsheets—directly within the app, without requiring third-party applications to open them fully. Files achieves this through a unified file system abstraction that simplifies interactions by hiding technical details, including the (APFS) for on-device storage and the (SMB) protocol for accessing network shares and file servers. This abstraction ensures consistent behavior across storage types, promoting efficiency in everyday file management tasks.

Platform Availability and Requirements

The Files app was introduced as a pre-installed application with in September 2017, providing native file management capabilities on compatible and devices. It requires or later and is available through the for devices running supported versions of the operating system. As of 2025, the app remains natively supported on iOS 18 and later for , iPadOS 18 and later for , and visionOS 1.0 and later for , enabling spatial file interactions on the latter platform since its 2024 launch. It is not available as a dedicated app on macOS, where file management is handled via the Finder, or on . Device compatibility includes all iPhones starting from the (for and later), iPads from the , , and onward, with enhanced features like external display support through Stage Manager available on compatible models running or later. The app supports 33 languages, including English, , French, German, Spanish, Japanese, and Simplified Chinese, ensuring broad accessibility across global users. Full functionality, particularly iCloud Drive integration, is available in regions where iCloud services are fully supported; however, in , iCloud operations are managed by a local partner (GCBD), which may impose regulatory limitations on data storage and access. Installation requires minimal storage, with the app size under 100 MB, though actual usage scales with locally stored or downloaded files; cloud-dependent features, such as syncing with Drive or third-party services, require an internet connection and do not function offline.

Development and Release History

Announcement and Initial Launch

In early June 2017, ahead of Apple's (WWDC), a placeholder listing for an app named "Files" surfaced in the App Store, complete with a generic blue folder icon and minimal description that suggested an impending native file management solution for the platform. This discovery, first noted by developer Steve Troughton-Smith on June 4, 2017, fueled speculation about Apple's plans to introduce a unified file browser to , marking a potential departure from the siloed app-based storage model that had defined the ecosystem since its inception. The Files app was officially unveiled during the WWDC 2017 keynote on June 5, 2017, as a core component of , Apple's major operating system update for and . Presented by Apple executives, including , the app was introduced to bridge the gap in iOS's file-handling capabilities, which had historically lacked the robust, centralized management offered by the macOS Finder, thereby empowering users to browse, organize, and access documents more intuitively without being confined to individual apps. The announcement emphasized Files' role in integrating local storage, Drive, and third-party cloud services like and into a single interface, positioning it as a foundational tool for productivity on mobile devices. Files debuted to the public on September 19, 2017, bundled as a pre-installed app with the update, which rolled out globally starting at 10 a.m. Pacific Time. Upon launch, it directly superseded the iCloud Drive app—introduced two years earlier with —serving as its expanded successor while ensuring full for all existing iCloud-stored files and folders, allowing users to migrate seamlessly without . This replacement streamlined iOS's document ecosystem, eliminating redundancy and centralizing access to cloud-based content. The development and initial rollout of Files were driven by Apple's evolving emphasis on document-centric workflows and cross-device continuity, particularly through enhanced Handoff integration, which enabled users to start file-related tasks on one Apple device and continue them effortlessly on another, such as moving a from an to a Mac via synchronization. This approach aligned with broader initiatives to foster interoperability across the , responding to user demands for more flexible file handling in an era of increasing mobile productivity.

Key Updates and Evolutions

The Files app, introduced in in 2017, initially supported unzipping ZIP archives natively, allowing users to extract contents directly within the app without third-party tools. Basic tagging functionality was also added at launch, enabling color-coded labels for organizing files across Drive and local storage, with tags syncing seamlessly between devices and macOS. Third-party cloud service integration, such as and , was a core feature from the outset, permitting previews and access to files stored in these providers directly from the app's sidebar. With the release of alongside in 2019, the app gained enhanced support for split-view multitasking, allowing users to run Files alongside another app in a divided screen layout for improved productivity on iPads. Subsequent updates from in 2020 through in 2022 focused on refining preview and connectivity capabilities. previews were expanded to handle a broader range of file types more efficiently, including interactive annotations for documents and media without fully opening them. Offline access to iCloud Drive files was streamlined, with users able to mark specific items as "available offline" to ensure availability without an connection, addressing common mobility needs. Support for SMB server connections, initially introduced in , was further optimized in these versions for connecting to external drives and , enabling seamless file transfers over local networks. iOS 17 and iPadOS 17, released in 2023, added support for managing devices, including the ability to rename and erase drives as well as view their storage capacity and available space directly in the app. Integration with , Apple's platform for Vision Pro launched in early 2024, extended Files to support spatial interfaces, where users can manipulate file grids in a three-dimensional environment for immersive organization and previewing. In 18 and 18 from 2024, and extending into subsequent updates through 2025, the app underwent a significant redesign emphasizing desktop-like . The list view was revamped with sortable columns for metadata like date, size, and type, alongside resizable panels and collapsible folder hierarchies to better accommodate complex workflows. iPadOS-specific enhancements included advanced windowing for multi-file editing, allowing multiple instances of Files or compatible apps to overlap and resize dynamically for simultaneous document handling. These evolutions have been driven by user feedback highlighting the app's initial limitations in emulating desktop file management, such as rigid navigation and insufficient customization, with Apple incorporating iterative improvements through public and developer beta programs to refine functionality ahead of general releases.

File Management Features

Browsing and Organization

The Files app on iOS and iPadOS offers a centralized interface for navigating files stored locally, in the cloud, or on external devices, with distinct layouts optimized for iPhone and iPad. On iPad, a sidebar provides quick access to key locations including "On My iPad" for local files, iCloud Drive for cloud storage, and connected external drives, while on iPhone, these locations appear under the Browse tab at the bottom of the screen. Users can customize the sidebar on iPad by editing or rearranging items for personalized navigation. For viewing files, the app supports multiple display modes to suit different needs: icon view presents files in a grid with thumbnails for images and videos to aid visual identification, list view shows details like and modification date in a compact format, and column view—available on —expands paths horizontally for deeper hierarchy exploration. These views can be switched via buttons in the , allowing users to preview media content without opening files fully. Organization within the app revolves around hierarchical folder management and tagging for efficient structuring. Users create new folders by the more button (three dots) and selecting New Folder, then naming it; subfolders can be nested similarly for deeper categorization. Renaming or deleting folders and subfolders is done by touching and holding the item, then choosing Rename or Delete from the contextual menu, with moved or deleted items recoverable from the Recents tab if needed. Color-coded tags enhance organization, enabling users to assign one of several predefined colors and custom names to files or folders for quick identification; tags sync across devices via and appear in the sidebar for filtering views to show only tagged items. Bulk selection supports multi-file operations, activated by the more button and Select, then additional items to move, copy, or tag them en masse. Path navigation simplifies accessing nested content through breadcrumb trails in column view on , which display the full hierarchy as tappable columns, and a on for stepwise return. The Recents tab aggregates frequently accessed items across all locations for easy retrieval without retracing paths. Favorites pinning allows users to designate folders as shortcuts by long-pressing and selecting Favorite, placing them in a dedicated Favorites section in the sidebar or Browse view for one-tap access. Local storage in the Files app is managed through the "On My " or "On My " container, which utilizes the (APFS) for efficient volume-based organization on the device. This container provides a device-wide space for files not tied to , including default folders like Downloads for browser-saved items. Access to app sandboxes is integrated, where each third-party app exposes its Documents folder under "On My iDevice" for seamless file handling within the app's secure boundaries, maintaining sandboxing principles.

Editing and Sharing Options

The Files app provides essential tools for basic file modifications, enabling users to rename, duplicate, move, or copy files and folders directly within the interface. To rename an item, users touch and hold it and select the Rename option from the contextual menu, allowing quick updates to file names without external applications. Duplication is similarly straightforward: after selecting a file, the file title or using the More menu presents a Duplicate command, creating an identical copy in the same location. For relocation, the Move function lets users drag items between folders or locations like On My and Drive, while copying can be achieved by duplicating and then moving the copy. These operations support ; Select allows multiple files to be chosen, followed by unified actions such as Move or Duplicate, with progress indicators displayed for larger sets to track completion. The app also handles archive management natively, supporting compression and decompression of ZIP files to streamline workflows. Users select one or more files, tap More, and choose Compress to bundle them into a ZIP archive—named after the original for single files or as Archive.zip for multiples—which can then be renamed or shared. Decompression is equally simple: tapping a ZIP file expands its contents into a new folder, which can be renamed immediately, facilitating quick access without third-party tools. For previewing and annotating, the Files app integrates Quick Look for non-destructive viewing of supported formats like PDFs and images, accessible by tapping a file to open its preview. Within this view, the Markup toolbar appears, allowing users to add drawings, text, shapes, or signatures using finger input or Apple Pencil on compatible iPad models, with tools for adjusting opacity, thickness, and colors. Annotations on PDFs include highlighting, underlining, or sketching directly on pages, while image markup supports cropping, rotating, or adding notes; changes can be saved to the original file or discarded to maintain the source intact. However, the app does not support full text editing of documents; instead, it routes users to dedicated applications like Notes or Pages via the Open In menu for deeper modifications. Sharing options emphasize seamless distribution across Apple ecosystems and beyond, leveraging the Share Sheet for versatile export. AirDrop enables rapid device-to-device transfers between nearby Apple devices, ideal for quick handoffs without internet. For broader collaboration, files can be sent via Messages or , or shared as iCloud links for viewing and editing access, with options to copy the link directly from the Share menu. The Share Sheet further integrates with third-party apps, allowing exports to services like or , and supports batch sharing by selecting multiple files before initiating the action, complete with compression prompts for large transfers to reduce file sizes. Progress indicators ensure visibility during transfers, enhancing reliability for bulk operations.

Integration and Compatibility

Cloud and Third-Party Service Support

The Files app integrates Drive as its default cloud storage location, enabling users to access, store, and manage files seamlessly across Apple devices. With Advanced Data Protection enabled, Drive employs for files, ensuring that only the user's trusted devices hold the encryption keys and Apple cannot access the content. However, as of February 2025, Advanced Data Protection is no longer available for new users in the and must be disabled for existing users there, due to government regulatory demands. Files stored in Drive automatically sync across signed-in devices, maintaining consistency without manual intervention, and Handoff facilitates continuing file-related tasks from one device to another, such as resuming edits in compatible apps. Users can share iCloud Drive folders with others, assigning read-only or read/write permissions to control access and collaboration. For family collaboration, iCloud supports sharing specific folders with Family Sharing group members, allowing joint access and edits while leveraging shared iCloud storage plans. Additionally, iCloud Drive provides version history for files, with deleted items recoverable for up to 30 days through the iCloud recovery portal. The Files app also offers native support for third-party cloud services, including , , Microsoft OneDrive, and , allowing users to connect multiple providers directly within the app. To set up these services, users must first install the respective third-party app and authenticate via login; once connected, the services appear as distinct locations in the Files app's sidebar, identifiable by their service-specific icons. Connected accounts enable real-time synchronization of files through the respective providers, ensuring updates reflect across devices. For offline access, users can recently viewed files to the device for local availability, with caching managed by available device storage rather than a fixed quota. This setup treats third-party files similarly to content in the Files app, supporting browsing and organization without leaving the native interface.

Device and External Storage Connectivity

The Files app provides full read and write access to the internal storage of and devices through the "On My iPhone" or "On My iPad" location, which organizes files in a unified view including app-specific folders for downloads and other local content. This local storage integration allows users to manage documents, , and other media directly on the device without relying on external connections, with the Files app exposing folders created by third-party apps for seamless organization. For , the Files app supports connectivity to USB drives, SD cards, and hard drives on devices with ports, such as models and later, as well as models from 2018 onward. These devices can mount compatible external storage automatically upon connection, enabling read and write operations in supported formats like APFS, , and FAT32, while the app allows reformatting drives to these standards directly if needed. On older iPhones and iPads with ports, users must employ adapters such as the Lightning to USB Camera Adapter to connect external drives, which then appear in the Files app sidebar for access. Network storage integration in the Files app facilitates connections to file servers and devices using the SMB protocol, allowing users to browse, add, and manage shared folders over local networks. To establish a connection, users navigate to the Browse tab, select "Connect to Server," and enter an SMB address (e.g., smb://servername) along with credentials for , with connected locations persisting in the sidebar for repeated access. While AFP support was available in earlier versions, SMB remains the primary and recommended protocol for modern network shares due to its widespread compatibility. Several limitations apply to these connectivity features: the Files app offers read-only access to NTFS-formatted drives natively, requiring reformatting to exFAT or FAT32 for write capabilities, and external devices must feature a single data partition to mount properly. Adapters are essential for Lightning-equipped devices, potentially introducing compatibility issues with certain drive power requirements, and network connections demand a stable Wi-Fi environment with proper server credentials to avoid authentication failures. As of 2025, updates to iPadOS on models with USB 4 ports, such as recent iPad Pro variants, have enhanced transfer speeds for external storage, supporting up to 40 Gbps for compatible drives and enabling faster file operations in the Files app.

Advanced Tools and User Experience

Search, Tagging, and Quick Actions

The Files app provides a robust search functionality through a dedicated global search bar accessible from the main interface, allowing users to query file names, content within supported formats such as text documents and PDFs, and associated tags. This search leverages Apple's Spotlight indexing system, which scans and catalogs local files for quick retrieval without scanning the entire storage each time. Users can scope searches to specific folders, locations like "On My ," or across all connected storage areas, including Drive and third-party services, enabling targeted discovery within organized structures. The search supports intuitive queries integrated with Spotlight across apps, such as locating "documents modified last week," focusing on metadata and content-based results. For cloud-based files in iCloud Drive, searches rely on service APIs to fetch results in real-time, potentially introducing slight delays compared to local indexed queries, but include suggestions for recent files and common patterns to streamline access. The tagging system in Files enables users to assign multiple tags to a single file or folder, facilitating flexible organization beyond traditional folder hierarchies. To add tags, users touch and hold an item, select "Tags," and choose from predefined or custom options, with the system suggesting relevant tags based on file type and existing metadata for efficiency. Tags can be color-coded for visual distinction, and users can filter views or search results by single tags or combinations thereof, such as displaying all documents tagged with both "" and "Urgent" across locations. This feature extends to iCloud-synced files, ensuring tags remain consistent across devices. Quick Actions enhance user efficiency by providing context-sensitive options via a long-press on any file or folder, revealing a with built-in tools like "Get Info" to display details such as file size, creation date, and modification history. For compatible formats, additional actions include "Markup" for annotating images and PDFs directly, or "Compress" to zip files for easier sharing, all without leaving the Files interface. Since iOS 18, users can also select "Keep Downloaded" to ensure files remain stored locally for offline access. The system integrates seamlessly with the Shortcuts app, allowing users to create and add custom automations—such as batch renaming or converting file types—that appear in the Quick Actions for one-tap execution on selected items. Performance for local searches benefits from Spotlight's pre-built indexes, which enable near-instantaneous results for most queries on devices with sufficient storage, though rebuilding the index may be required periodically for optimal accuracy. Cloud searches, while dependent on internet connectivity and provider APIs like those for Drive, incorporate recents lists and predictive suggestions to prioritize frequently accessed files, reducing the need for full manual scans.

Drag-and-Drop and Multitasking Enhancements

The drag-and-drop functionality in the Files app was introduced with in 2017, enabling users on to move items within the app and across compatible applications using touch gestures. This feature allowed seamless transfer of files, such as dragging a document from Files directly into or , enhancing intra-app and cross-app workflows without relying on traditional copy-paste methods. On , full cross-app drag-and-drop support arrived in in 2021, extending the capability to smaller screens by requiring multi-finger gestures to access the App Switcher during drags. Advanced gestures in the Files app support multi-file selection and dragging, where users touch and hold one item, tap additional files with another finger to build a selection (indicated by a badge showing the count), and then drag the group to a destination. Visual previews appear during the drag operation, displaying thumbnails or icons of the selected items to confirm the contents being moved, which aids precision in large selections. Drop zones are optimized in multitasking modes like Split View and Slide Over, where hovering over an app window highlights valid insertion points, and this extends to Stage Manager in iPadOS 16 (2022), allowing drags across resizable, overlapping windows for more desktop-like file handling. The iPadOS 18 update in 2024 further refined this by introducing fully resizable windows for the Files app, enabling users to position it alongside other apps in flexible layouts to facilitate drags without interrupting workflows. As of iOS 18.1 and later, drag-and-drop also supports iPhone Mirroring, allowing file transfers between mirrored iPhone and Mac. Multitasking integrations tie drag-and-drop closely to iPadOS features, such as (PiP) mode, which permits video previews from Files to play in a floating window during file manipulations in other apps, maintaining continuity for media-related tasks. Universal Control, introduced in , enhances cross-device productivity by allowing direct drags of files from a nearby Mac's Finder to the iPad's Files app—or vice versa—without physical connection, leveraging Sidecar-like cursor extension for handoff. iPad-specific evolutions emphasize desktop emulation, with the 26 update in 2025 adding resizable column-based list views in Files for navigating large folders. Users can adjust column widths by dragging dividers, exposing nested subfolders in a horizontal layout that simplifies selecting and dragging multiple items from deep hierarchies, akin to macOS Finder workflows. This update improves efficiency for power users managing extensive file sets, reducing scrolling and enhancing gesture-based organization during multitasking sessions.

Security and Limitations

Privacy and Data Protection

The Files app in Apple's ecosystem incorporates robust standards to safeguard user data. All local files managed by Files are stored on device volumes formatted with the (APFS), which integrates hardware-accelerated AES encryption through Apple's Data Protection framework, ensuring files are encrypted at rest using device-specific keys derived from the Secure Enclave. For iCloud-stored files accessible via Files, is available through the optional Advanced Data Protection feature, introduced in iOS 16.2, iPadOS 16.2, and ; when enabled, it protects iCloud Drive contents, including backups and notes, such that only the user's trusted devices hold the decryption keys. Access to files is tightly controlled to prevent unauthorized exposure. Third-party apps integrated with Files operate within Apple's app sandboxing model, which restricts them to their own isolated containers and requires explicit user permission to read or write files outside those boundaries, thereby blocking unauthorized inter-app data access. When users connect third-party cloud services like Google Drive or Dropbox to Files, the app prompts for authentication and scoped permissions, limiting access to only the granted folders without broader device surveillance. Additionally, Apple does not engage in app tracking or telemetry collection related to Files usage, ensuring no metadata about file operations or contents is sent to servers without user consent. File sharing features in Files prioritize user-controlled . Shared links generated from Drive files can be configured with expiration dates, passwords, and permission levels (view-only or collaborative), automatically revoking access after the set period to minimize prolonged exposure. In Family Sharing setups, access to shared storage requires organizer approval for purchases and content requests, with enabling oversight of family members' file interactions. Apple's implementation in Files aligns with global privacy regulations, including GDPR and CCPA, through principles of minimization—collecting only essential metadata for functionality while avoiding unnecessary user —and transparent mechanisms. No is collected on file contents, preserving user even during . In (released September 2024), Files benefits from enhanced controls, such as the ability to lock apps containing sensitive files and hide notifications from the when accessing protected folders.

Supported Formats and Known Constraints

The Files app on Apple devices supports a range of common file types for previewing, playback, and basic management, leveraging built-in frameworks like and AVFoundation. For images, it natively handles formats including , , and HEIC/HEIF, which are optimized for efficiency on , , and macOS. HEIC provides superior compression for photos captured on Apple devices, while and offer broad compatibility for web and document use. Documents such as PDF files are fully supported for viewing and annotation directly within the app, with Preview on macOS enabling markup and export options. Microsoft Office formats like DOCX can be previewed via Quick Look integration, though editing requires dedicated apps like Pages or Microsoft Word. Audio files in MP3, FLAC, and AAC formats are playable, with FLAC offering lossless quality and AAC providing efficient compression for Apple Music and podcasts. Video support includes MOV and MP4 containers, primarily using H.264 or HEVC codecs for smooth playback; however, AVI files have limited native support, often requiring conversion or third-party apps for full compatibility. In iOS 18 and iPadOS 18 (2024), ProRes video recording and support were expanded to devices with 128 GB storage or more, enhancing professional workflows via AVFoundation. Archive handling in the Files app is limited to native ZIP files, which can be created, extracted, and managed without additional software. Formats like RAR and are not supported natively and necessitate third-party applications from the for extraction. Several platform-specific constraints affect usability. macOS and iOS/iPadOS provide read-only access to NTFS-formatted drives by default, preventing direct writes to Windows-compatible without third-party drivers like Paragon . Search functionality relies on Spotlight indexing, restricting results to metadata and content within indexed locations; it does not perform deep scans of unextracted archives or non-indexed external volumes. On iOS and iPadOS, the Files app lacks the full feature parity of macOS Finder, such as command-line access via Terminal or advanced scripting. iCloud Drive maintains a per-file size limit of 50 GB, beyond which uploads fail, though overall storage adheres to the user's plan capacity.

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