I tried using the import directory but its causing problems with a file corrupt error and a message about an unrecognised post processor

Hi. We have a preset tool library and operations library with all feeds and speeds etc already programmed that we use in X2. I have made a virgin installation of X3 on my seat of MasterCAM with no migration as suggested by our supplier. Has anyone successfully converted their tool library or ops library from X2 and X3 because im having all sorts of problems with corrupt files etc when I try to import them into X3. Many thanks