Learn how to convert and open Apple Keynote file in PowerPoint on Windows computer using Keynote tool or Zamzar and Cloudconvert online web apps.

If you get Access is denied message when opening encrypted files, you may need to first export the Encrypting File System (EFS) certificate and key.

When you double-click on a file in Windows, it will automatically open a default program that is configured to manage these types of files. It is common, though, want or need to use a different ...