cell language setting is not stored in .xlsx

in Format Cells (Ctrl+1) → Font → Language, it is possible to set the spell checker language. However, this info is stored only when saving in .ods format and not in .xlsx
Any ideas? Thanks…
(LibreOffice Calc Version

There is no 1:1 overlap between LO and M$. The solution is: save in ODT format!

Please create a bug report Feeback

Maybe because XLSX, as a format, has no “cell language” concept at all?

(@ebot: a typo: ODT->ODS)

Yes, thanks for the correction.

@mikekaganski: seems you are right…