I'm not using Windows but only Linux, so I can't make a suggestion by own experience. Maybe Notepad++ (https://notepad-plus-plus.org/) suits you. At least you should be able to select the encoding for saving the files.

Are you asking about what to do with a French translation of one of my plugins? If so, you can either make a pull request to the plugin repo at github or you could just send me the file by email (my email address is included in the README files of all my plugins).

great! I'll check it and I will send you by mail my translation as soon it will be ready (with accents).

thanks

bonjour,

je cherche la traduction en français de elggchat pour la version 2.3.8

cordialement