Spelling in Slovenian language?

Ask Microsoft, they are the ones who would have to provide it. See

https://support.office.com/en-us/article/proofing-tools-available-in-office-for-mac-e175007d-193d-4efc-afce-5e27a59f1057

What about spell check for Slovenian language in Pages and Numbers?

Dizzy82 wrote:

What about spell check for Slovenian language in Pages and Numbers?

You can add .dic and .aff files if you find them, see

https://m10lmac.blogspot.com/2011/06/extra-spell-checking-dictionaries-for.html