.fa file: how to open it on Windows

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

• 
  UGENE

  UGENE is a free open-source bioinformatics software for Windows, macOS, and Linux.

  Open source 53.1 ★ 284
• S
  SnapGene

  Plan, visualize, & document core molecular biology procedures

  Proprietary 8.2.3

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