How to Convert Multiple STP Files to CIN?
1. Download and Install reaConverter
reaConverter is a standalone Windows app — download, install, and start converting STP files in under two minutes.
2. Load your STP files
Open reaConverter and import your .stp files. No file limits, no slowdowns. Add as many as you need.
Drag files into the window, use the Add Files button, or select entire folders.

3. Select CIN as output format
Select CIN as target format and pick where to save results. You can keep default settings or fine-tune the output.

4. Start STP to CIN conversion
Hit Convert to process your files. The log window shows progress, timing, and status for every file.

Conversion complete? Your CIN files are saved to the destination folder, ready to use.






