check out: https://mathematica.stackexchange.com/questions/29309/export-and-import-with-special-unicode-characters
Thank you very much!
LeTexte = Import["UEMO2021.txt", {"Text", "Lines"}, CharacterEncoding -> "WindowsANSI"];
works perfectly!
Regards, Claude
I think you'll succeed with Mike's suggestion above. But also be aware that different sources can use different characters for apostrophe. So one encoding might not work for all documents.