.cer file: how to open it on Windows
3 Windows apps register the .cer extension. Install one of them to open the file with a double-click.
About the format
- Format
- X.509 certificate
- MIME type
- application/pkix-cert
- PRONOM identifier
- fmt/1300
Format data: freedesktop.org shared-mime-info and PRONOM (The National Archives, UK).
- Gpg4win
A secure solution for file and email encryption.
- Sublime Text 4
Sublime is a sophisticated cross-platform text editor for code, markup and prose.
- Gpg4win (Beta)
A secure solution for file and email encryption.
Related guide: Change the default app for a file type in Windows