FileInfo - The File Extensions Database
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Today's File Type – October 19th
A CER file is a security file provided by a third party Certificate Authority, such as VeriSign or Thwate, that verifies the authenticity of a website. It is installed on a web server to establish the validity of a certain website hosted on the server.
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Recent Updates
- March 30, 2018It's tax season! Learn about the different tax file formats and the programs that open them.
- December 22, 2017iOS users – learn how to manage files with the iOS Files app.
- November 29, 2017File Viewer Plus version 2.2.1 is now available.
- October 17, 2017Upgrading to macOS High Sierra? Read about the new Apple File System (APFS).
- October 9, 2017Learn how to change file permissions in Windows 10 with this video tutorial.