This has been asked before, the answer is don't use mobile to edit spreadsheets
this post was submitted on 05 Feb 2026
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This was my conclusion too.
Markor https://f-droid.org/en/packages/net.gsantner.markor is great for markdown editing on Android, it wouldn't be as smooth but perhaps it could be used with Syncthing.
I use Markor on android and syncthing, it's a pretty good experience.
Have you tried the collabora app for mobile?
I think Joplin has a spreadsheet plug-in.
Yeah. That's what opencloud uses. Their app does a handoff to Collabora.
Ill have a look at Joplin. Thanks.
OnlyOffice?
Haven't tried it. Is it better in this regard?
I like it a lot more UI wise. It feels like the modern MS Office if the ribbon UI wasn't awful and busy. Compatibility is extremely good as well. Has Nextcloud/standalone web version, desktop versions, phone versions. I haven't used the phone app that much, but it seems good from what I have used.
Edit: I don't know how well it handles Markdown, however.
OK, so after a bit of poking at it:
- I agree. The OnlyOffice mobile Android app (called Documents) is a much better mobile spreadsheet viewer/editor than Collabora.
- What's even cooler is that the app works with Nextcloud as a cloud backend. So I can log into my existing Nextcloud instance and get the benefit of the better sheets editor on my existing files with no extra work at all!
- They say that OnlyOffice supports markdown as of version 9, but I think they mean the broader platform itself, not the Android app. For example, you cannot create a new .md file from the mobile app, and if you try to open an existing .md file, it displays a "wrong file type" error, but it does successfully open it as a .docx.
In any case, since it works with Nextcloud, the app, out of the box, is already a more functional mobile spreadsheet editor. That's a big win in my book. Thanks!