.der file: how to open it on Windows
2 Windows apps register the .der extension. Install one of them to open the file with a double-click.
About the format
- Format
- DER/PEM/Netscape-encoded X.509 certificate
- MIME type
- application/x-x509-ca-cert
Format data: freedesktop.org shared-mime-info and PRONOM (The National Archives, UK).
- Gpg4win
A secure solution for file and email encryption.
- Gpg4win (Beta)
A secure solution for file and email encryption.
Related guide: Change the default app for a file type in Windows