Editing text in .txt and .csv files (French accents)

Hello everyone.

I’m tyring to edit the text in the .txt and .csv files (with say notepad) of my French game. However, when I do so, depending on the coding I use (like ANSI), either I loose all caracters with accents (like é, à, etc.) or I see them, but glued to other caracters with no space between the caracters.

Can anyone help?

Thanks a billion!