And I've just found out they are probably I-DEAS files ... which I
believe cannot be directly imported by SW.
They may have to be opened in NX or whatever and resaved as
Parasolid or whatever.
John, thanks for give me know about NX import/export.
Today my client said to me that the files is from Microcadam and
Helix. But I am still confuse on how to open the files with
solidworks.
The extensions are used by a variety of softwares, of which only .pkg (CoCreate) might fit the bill.