# Can't save to Proton Drive

**URL:** <https://forum.collaboraonline.com/t/cant-save-to-proton-drive/3603>\
**Category:** User Support\
**Created:** [April 13, 2025, 7:54pm UTC](https://forum.collaboraonline.com/t/cant-save-to-proton-drive/3603 "2025-04-13T19:54:53Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Pipe593](https://avatars.discourse-cdn.com/v4/letter/p/f17d59/32.png) [@Pipe593](https://forum.collaboraonline.com/u/Pipe593)\
**Post date:** [April 13, 2025, 7:54pm UTC](https://forum.collaboraonline.com/t/cant-save-to-proton-drive/3603/1 "2025-04-13T19:54:53Z")

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So here’s an interesting one. On my Android phone (Pixel 7, Android 15, Collabora v: 24.04.12.4) I can open and edit documents from my Proton Drive. I can also “export as” to Proton Drive, as long as I create a new file. However, I can not save the edits to a file on Proton Drive - no error is given, but the changes are not saved. Nor can I ‘Export As’ and overwrite the file on Proton Drive - Error is: Something went wrong. Saving as wt is not supported. Only r.

I have cross-posted this issue to the Proton discord, just in case. Anybody have any thoughts or experience with this?

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**Author:** ![darshan](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.collaboraonline.com/darshan/32/2230_2.png) [@darshan](https://forum.collaboraonline.com/u/darshan)\
**Post date:** [April 14, 2025, 9:17am UTC](https://forum.collaboraonline.com/t/cant-save-to-proton-drive/3603/2 "2025-04-14T09:17:30Z")

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hii @Pipe593 welcome to collabora online forums

That’s a curious one—and a good catch. It sounds like Proton Drive is mounted in a way that allows read and _create_ access, but not _write/update_ access to existing files. That error message (“Saving as wt is not supported. Only r.”) seems to indicate that the file system interface being used by Proton Drive (on Android) is only exposing the file in a read-only mode (`r`) or maybe read-create, but not in a write-update (`wt`) mode.

**Have you tried another editor?** – Just for comparison, like Word for Android or even Google Docs, to see if _they_ can overwrite a file on Proton Drive. That might confirm it’s a Proton-side limitation.

Thanks  
Darshan

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**Author:** ![Pipe593](https://avatars.discourse-cdn.com/v4/letter/p/f17d59/32.png) [@Pipe593](https://forum.collaboraonline.com/u/Pipe593)\
**Post date:** [April 14, 2025, 5:42pm UTC](https://forum.collaboraonline.com/t/cant-save-to-proton-drive/3603/3 "2025-04-14T17:42:54Z")

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Hah! Being a Unix guy, where a write is a write, I wasn’t even aware of the ‘update’ option on Android. You are absolutely right, other apps can read, create and delete, but can not overwrite. I’ve contacted Proton support - and will update this thread with any information they provide.

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**Author:** ![darshan](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.collaboraonline.com/darshan/32/2230_2.png) [@darshan](https://forum.collaboraonline.com/u/darshan)\
**Post date:** [April 23, 2025, 6:44am UTC](https://forum.collaboraonline.com/t/cant-save-to-proton-drive/3603/4 "2025-04-23T06:44:32Z")

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