.gcd file: how to open it on Windows

2 Windows apps register the .gcd extension. Install one of them to open the file with a double-click.

• 
  OpenChrom

  Open Source software for chromatography, spectrometry and spectroscopy

  Open source 1.6.38 24.6K ↓ ★ 135
• I
  IsoBuster

  The Ultimate Data Recovery Software

  Proprietary 5.8

Related guide: Change the default app for a file type in Windows