Hi folks!

I"m facing a problem with the Custom UI editor for Microsoft Office thats driving me nuts... When I edit a Xml code within the XLSM file, it works well... When I opened the file and tested the callbacks indexed with the buttons of my customized ribbon, I tried to opened it again in the Custom UI Editor and it returns to me that "The file has corrupted data".

What its supposed to be? I searched for it at the google and it seemed to me that this forum is the best place to ask for help. Anyone who had faced that problem would help. For further information, the specific file has some VBA codes that runs when the file are opened.