[Converter Request] Better compatibility for office documents

[webysther]

What file formats are missing?

LibreOffice works but the compatibility is terrible when talking about MS Office formats, but OnlyOffice support a excelent support

What converter should be added

OnlyOffice Document Builder for MS Office formats and maybe others:

https://api.onlyoffice.com/docs/document-builder/get-started/supported-formats

Are you willing to add it?

• Yes
• No

Additional context

I need green light to make sure my PR will see the day

[C4illin]

Go for it! I looked briefly at OnlyOffice before and seems perfect

[webysther]

Go for it! I looked briefly at OnlyOffice before and seems perfect

I use everyday in my home, ditch full ms office for my wife excel needs