Other EPRT conversions

Conversion of eprt files to stp file format

It is unlikely that you can convert eDrawings (.eprt) files to any of the CAD formats, including STEP product data (.stp, .step), which is what eprt to stp conversion represents. eDrawings generally are only meant for viewing and publishing, no CAD data can be exported/converted from unless this option was enabled during the export. Your best option would be to somehow get to the sources from which the .eprt files were exported in first place.

Open EPRT file    Open STP file