How to Convert Multiple GRO4 Files to CG4?
1. Download and Install reaConverter
First, grab reaConverter from the download button below. Installation is fast, and the software runs offline — no account or signup needed.
2. Load your GRO4 files
Open reaConverter and import your .gro4 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 CG4 as output format
Select CG4 as target format and pick where to save results. You can keep default settings or fine-tune the output.
4. Start GRO4 to CG4 conversion
Hit Convert to process your files. The log window shows progress, timing, and status for every file.
Conversion complete? Your CG4 files are saved to the destination folder, ready to use.
