File types and external devices that work on Chromebooks

Chromebooks can use the following file types, external devices, and cloud storage systems.

Note: If you're using your Chromebook at work or school, some devices or files might not work with your Chromebook. For more help, contact your administrator.

File types
  • Microsoft Office files: .doc, .docx, .xls, .xlsx, .ppt (read-only), .pptx (read-only). Learn more about viewing and editing Office documents.
  • Media: .3gp, .avi, .mov, .mp4, .m4v, .m4a, .mp3, .mkv, .ogv, .ogm, .ogg, .oga, .webm, .wav
  • Images: .bmp, .gif, .jpg, .jpeg, .png, .webp
  • Compressed files: .zip, .rar
  • Other: .txt, .pdf (read-only; you won't be able to edit these files)

External devices

Compatible accessories for Chromebook

Chromebooks can connect to the following devices:

  • MTP devices (can read & write files)
  • USB keyboards (Windows and Mac versions)
  • USB mice with the following features: left button, right button, scrollwheel
  • USB hubs
  • Certain Bluetooth devices
  • Monitors with DisplayPort, DVI, HDMI, or VGA connections
  • USB, DisplayPort, and HDMI audio devices
  • Headset with a 3.5 mm jack
  • Webcam with a USB cable
  • MP3 player or mobile phone with a USB cable (can be used for charging)
  • Huawei mobile dongle
"Works With Chromebook" certified accessories

Accessories with a badge that says “works with Chromebooks” on their packaging or online are certified to meet Google's compatibility standards. 

“Works With Chromebook” certification can be found on:

  • Drawing Tablets
  • Ethernet dongles
  • External Storage
  • Gaming controllers
  • Headsets
  • Keyboards
  • Mice 
  • Microphone
  • Printer (Print Only)
  • USB-C cables
  • USI Stylus
  • Video adapters
  • Wall chargers 
  • Webcams 

To see a full list of all “Works With Chromebook” devices, go to

Important: Make sure you're running the latest version of Chrome OS. Learn more about how to update your Chromebook.

Learn more about the Works With Chromebook program.

Chromebooks compatible with USI (Universal Stylus Initiative) Styluses

The below Chromebooks are USI enabled: 

  • ASUS Chromebook Flip C436
  • HP Chromebook x360 12b
  • HP Chromebook x2
  • HP Chromebook x360 14b
  • HP Chromebook x360 14c
  • Lenovo IdeaPad Flex 5i Chromebook
  • Lenovo Chromebook Duet
  • Lenovo ThinkPad C13 Yoga
  • Lenovo 10e Chromebook Tablet
  • Samsung Chromebook Plus V2 (garaged)
  • Samsung Galaxy Chromebook (garaged)
Container Video codec Audio codec
ogv Theora --





mp4 H264 --
  MPEG4 --
mov MPEG4 --
  H264 --
avi MPEG4 MP3
3gp H264 AAC

Important: AMR and GSM are no longer supported on Chromebooks.


You can access files on external devices connected to your Chromebook if they use the following types of filesystems:

  • FAT (FAT16, FAT32, exFAT)
  • HFS+ (read-only on journaled HFS+)
  • ISO9660 (read-only)
  • MTP
  • NTFS
  • UDF (read-only)
Storage devices
  • USB hard drives and thumb drives
  • USB CD-ROM and DVD-ROM drives (read-only)

Remove a storage device safely by clicking Eject .

Note: If your Chromebook has an SD card slot, you can also use an SD or microSD card. MicroSD cards can be used in full-sized SD card slots with an adapter.

Cloud storage

Chromebooks work with cloud file systems, like Google Drive, Box, or SMB. To connect to an SMB file share:

  1. In the corner of your screen, select the Launcher and then Up arrow .
  2. Open Files .
  3. In the top right, select More .
  4. Select Add new service and then SMB Shares.
  5. A window will open. Select Add File Share. Fill out your info.
  6. Select Add.

To connect to other cloud file systems:

  1. In the corner of your screen, select the Launcher and then Up arrow .
  2. Open Files .
  3. In the top right, select More .
  4. Select Install new service.
  5. To install a new cloud file system, choose a system and follow the onscreen steps.


Chromebooks can connect to certain phones. You can unlock your Chromebook with an Android phone.

Troubleshoot problems with file types and external devices

When I try to open a file, I get an "Unknown file type" error message

This error means that this file type isn't working on your Chromebook at this time.

Instead, try saving the file to Google Drive or another web application, then opening it in your browser.

I see an error: "Sorry, your device is not supported at this time"

Your Chromebook might not support the external storage device you're trying to use. Make sure your external storage device's format is supported.

If your storage device is supported, make sure your Chromebook is using the latest version of Chrome OS.

If your Chromebook is using the latest version, and no updates are available, try using Google Drive to view the files:

  1. Plug your storage device into another computer.
  2. Upload the files from the device to a cloud file system, such as Google Drive.
  3. Open your Chromebook, then open Google Drive to view the files.
I see an error: "Sorry, your device was not recognized" or "Sorry, at least one partition on your device could not be mounted"

You'll need to reformat your external storage device before you can use it with your Chromebook. Follow the steps below.

Important: These steps will erase all your files stored on the storage device. Make sure to back them up somewhere else before erasing.

  1. In the corner of your screen, select the Launcher and then Up arrow .
  2. Select Files .
  3. On the left, select the external storage device.
  4. In the window that appears, select Format.

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