CutRocket Files Not Working

When i try to use CutRocket files on Carbide Create Pro V8 they will not open. Ive tried opening them and importing, with no success. Any thoughts?

Welcome to the forum, lots of files on CutRocket were made from previous versions of CC. So for example a V6 file would need to be saved in V7 first and then the V7 saved in V8. Search the forum and you will find several threads explains how to resave earlier version files.