How to Convert Multiple GB Files to STP?
1. Download and Install reaConverter
reaConverter is a standalone Windows app — download, install, and start converting GB files in under two minutes.
2. Load your GB files
Launch reaConverter and drop in your GB files. The software queues everything for batch processing with consistent settings.
Add files by dragging them in, browsing folders, or using the right-click menu from Windows Explorer.

3. Select STP as output format
Pick STP as output format and choose the destination folder where you want to save new .stp files.

4. Start GB to STP conversion
Then simply press the Convert button and your conversion will begin in no time!

Once the conversion is complete, you can find your STP files in the destination folder you selected.





