Hey guys, Ok so I found an old thread on this site, but the solution was never given in the thread. I am trying to open a .X_T file in mastercam. I am running mastercam version X7, the .X_T file was posted out of autodesk inventory 2017. I get the error "PK ERROR CODE 970-open/close/read/write error for schema file-check PSLDDATA directory". I have looked in my COMMONPSLDDATA sub-directory for SCH_12103.S_T and SCH_12102.S_T , neither of these two files are present nor can I find them online. Any help in resolving this issue would be appreciated.