Ivan Cvitic
Ivan Cvitic
This is likely possible the same as support for .tsv files. Cheers.
This is very few information. OnlyOffice have different branches, versions and architecture builds. XLSX is a open standard format(compressed XML) so the issue could be with your locally(or in cloud)...
Being able to unzip files doesn't guarantee file or files in the archive are not corrupted. I would address this issue to buggy OnlyOffice version or possible even Nextcloud if...
This is the issue with 3rd party software rather than xlsxgrep so closing the issue.