All data can only be utilized if your system has the appropriate interface
You should know what interface version is installed on your system - it should be similar to our versions (see table above). If you don't have the same version, let us know and we will gneerate the needed format in another way.
To be able to read the Parasolid-format your system has to have Parasolid as your CAD-Core.
ZipZentral
All CAD files are zipped. To unzip them you may use a program like ZipCentral, wich is freeware. Free download