FileHandler implementation like in a real OS (default, vs. special per File)

[kaystrobach]

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Is your feature request related to a problem? Please describe.

Some office documents work in OnlyOffice, some in OpenOffice.
This is usually solved in other Operatingsystems by filehandler, which operate either directly on a per file decision or on the file ending.

Describe the solution you'd like

I see 2 solutions:

• offer an option to open a file with a different file handler via context menu
• behave like Mac os and let the user decide on file type and based on a single file, which handler should be used

Describe alternatives you've considered

• switching office suite

Additional context
Add any other context or screenshots about the feature request here.

[skjnldsv]

Duplicate of nextcloud/viewer#2393