The file format is probably not the appropriate one. You are talking about translation of a questionnaire or something else?

Open the translation file and enter a character. Make sure you know where you are making the change. Then upload the file and delete the entered character

Hi Alexandre, thank you for your comment.

Yes, I am trying to upload a translating file for a questionnaire. I have downloaded the language file direct from Qualtrics (See attached) tried all formats. But get the error when I try and upload the translated version! 

Hi JBK , thank you for your comment.

I get the error when I try and upload the file, so can't edit changes made! I can't move from the upload page. (See attached)

This might be a situation where you’ll have to contact Qualtrics’ support I think.

open the translation in your end and make a change. then try to upload it. Then under the edit translation you can revert your changes.