Collabora Office is a text editor, spreadsheet and presentation program. It's now on Android, enhancing your possibilities to work offline just as you would with Collabora Online on the web. This app is in active development, feedback and bug reports are very welcome at https://github.com/CollaboraOnline/online

Currently it serves 4 apps. To add it to your F-Droid app, scan the QR code (click it to enlarge) or use this link:

https://www.collaboraoffice.com/downloads/fdroid/repo

If you would like to manually verify the fingerprint (SHA-256) of the repository signing key, here it is:
57 32 58 C8 4E 14 9B 5F 4D 92 99 E7 43 4B 2B 69 A8 41 03 72 92 1D 4A E5 86 BA 91 EC 76 78 92 CC