CATIA identifies the files on the basis of UUID, even if the names are equal This UUID can't be seen or edited in any CATIA function and each CATPart or CATProduct should have such number. Here is a short list of options:
1. Create new UUIDs
File + new ones
File + new ones from
File + save As - option save as new document
INSERT new Product
INSERT new part
Document Template Creation
2. Keep same UUIDs
File + open
File + save management
File + save
File + SaveAs
Send to directory
File + CLOSE
File + save
File + save ALL
More informations on http://pub16.bravenet.com/faq/show.php?catid=4708&usernum=1324469216#q2
