The name of nodes and text added to sticky notes etc. can’t be changed automatically. But you can just copy the JSON to an LLM of your choice like ChatGPT and ask it to translate the content, without changing the structure and n8n reference for example.
it seems like you want to upload an English template, but the creator provided one in French. this isn’t an issue with n8n itself, but rather a matter of translation.
if you have a copy of the desired english text somewhere, you could try copying and pasting it into your n8n workflow using cmd+c/ctrl+c and cmd+v/ctrl+v to paste. if that’s not possible, you’ll need to contact the creator for an english version or use a different template.
I was able to just cut and paste every single line of French Google translate and converted into English. There isn’t a quick button to change the language. It took me some time.