Collabora Office

Collabora Office is a text editor, spreadsheet and presentation program based on LibreOffice, the world's most popular Open Source office suite — and now it's on iOS, enhancing your possibilities to work on mobile devices.
This app is in active development, feedback and bug reports are very welcome.
Supported files:
• Open Document Format (.odt, .odp, .ods, .ots, .ott, .otp)
• Microsoft Office 2007/2010/2013/2016/2019 (.docx, .pptx, .xlsx, .dotx, .xltx, .ppsx)
• Microsoft Office 97/2000/XP/2003 (.doc, .ppt, .xls, .dot, .xlt, .pps)
Report issues:
Use the bugtracker and attach any files that caused problems via
https://col.la/iosBug . Please note that anything you enter in the bugtracker will be public.
About the app:
Collabora Office for iOS is based on the LibreOffice code for macOS and other platforms. This, combined with a new front-end based on Collabora Online.
Credits:
iOS port is mainly based on the work of Collabora engineer Tor Lillqvist, with help of Patrick Luby. Please find a detailed list of contributors in the credits: https://col.la/iosCredits
License: Open Source — Mozilla Public License v2 and other