Converting projects from FCP X to Avid Pro Tools is the only officially supported workflow.
Avid Pro Tools v7.0 or later, requires AAF import. The LE versions are not supported as they do not support AAF import. Note that Avid Pro Tools does not support referencing multi-channel WAV files.
While opening X2Pro's AAFs in Pro Tools is the only officially supported workflow, customers have reported success when importing X2Pro generated AAFs into:
Note that Merging Pyramix does support referencing multi-channel WAV files.