The following describes the procedure to open files from Catia R18 with Catia R15
Current state
Rollback from a recent version to an older version of CATIA is not possible (for e.g. opening a document of R18 from a workstation with R15)
R15 > R18
All R15 files (CATPart, CATProduct, CATProcess,…) is upward compatible with R18
R18 > R15
However they are not backward compatible from R18 to R15. Although there is a possibilty in CATIA to convert a file from a recent to an older version with the “Downward Compatibility” options (Tools > Utility > Downward Compatibility), the best way to convert a native CATIA R18 file to R15 is to convert it into the STEP format
To do this: Click on File > Save As > .stp > Save
Howto support:
vacant position