ONLYOFFICE Document Server is an online office suite comprising viewers and editors for texts, spreadsheets and presentations, fully compatible with Office Open XML formats: .docx, .xlsx, .pptx and enabling collaborative editing in real time.
If you do want to host for other reasons (privacy) try https://www.onlyoffice.com/ — it’s a great web based office suite!
1 project | reddit.com/r/selfhosted | 20 May 2022
Libre Office vs OpenOffice?
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Lightweight alternative to libreoffice
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Is there a way to Paste as an Image... Match o365 functionality
1 project | reddit.com/r/OnlyOffice | 14 Apr 2022