Amazfit Watch faces

Hi, I’m trying to install a Watch face downloading in my iPhone and trying to open it with AmazTools and when I do that an error message appears saying that is an invalid file.
Any tips?

Same thing happened to me while using Chrome in iOS.

Make sure you use the standard Safari browser when downloading (and opening), not chrome or any other browser.
That worked for me after getting that error

Use iCloud to save the file to
Keep the size below 300kb or something...