These files are stored in the .pptx file format. Now if you create a presentation in Keynote, and you want to open it on your Windows 10 computer, then its .key format will not be supported.

Import PFX file to restore EFS File Encryption Certificate & Key via Certificates Manager Press the Windows key + R. In the Run dialog box, type certmgr.msc, hit Enter to open Certificates Manager ...

Open-source might not be the first thing you think of with Windows, but these free tools can seriously boost your productivity.

Tips After you successfully open a specific key using RegJump, you can safely delete the RegJump file you saved in the desktop since the extracted file is already in the Windows folder.