[Dropped] ChatGPT wants me to upload *.xlsx

[EasyWrites]

I know how to convert *.odt to *.xls, but it's asking me for *.xlsx. Can that be done in Calc?
Thanks

[floris v]

Welcome to the forum.
No, it's not possible to save in the docx, xlsx and other ***x formats of MS Office in Apache OpenOffice. If you really need to save in those formats, you should switch to LibreOffice.

[MrProgrammer]

… [CharGTP is] asking me for *.xlsx.
Thanks

Upload your file and tell the AI system to either work with that, or perform a translation for you, if it's so terrific. Surely AI should be helping you, not the other way around.

[RoryOF]

Or pass your .xls/.odt file through www.zamzar.com to covert to .xlsx

[Hagar Delest]

I know how to convert *.odt to *.xls, but it's asking me for *.xlsx. Can that be done in Calc?

That's basically strange. odt is for text documents. xlsx is for spreadsheets. What are you trying to achieve exactly?