CATPART - CATIA V5 Part File
This is a part file generated by the CATIA V5 software package wihich is a 3D CAD manufacturing program. It stores a part model which includes the 3D geometry and structural data and may be combined with other part files into a CATPRODUCT assembly file. These files may store part designs such as metal brackets, machine parts, casings as well as other equipment pieces. In conversations, these files are often referred to as 'CATPart' files.