EPRT file extension is associated with SolidWorks, a 2D and 3D CAD design software developed by Dassault Systèmes. Solidworks is available for Windows.

EPRT is a part document and can be opened using eDrawing or eDrawings 2006 viewers, which don’t require access to SolidWorks instance. EPRT files store 2D or 3D object models. The above-mentioned viewers offer unique object animation function to allow users to better understand given designs.