The File Extensions Database


.PNNE File Extension

  • Category: Encoded and encrypted Files

What is an .PNNE file?

.PNNE is Norton Encrypt for Mac

The PNNE file extension is used for encrypted files created in a very old utility for Macintosh computers called Norton Encrypt. Most likely obsolete file format.


How to open:

Currently there is no specific information available, about how to open this file extension.

How to convert:

Currently there is no specific information available, about how to convert this file extension.

How to solve problems with PNNE files

  • Associate the PNNE file extension with the correct application. On :
    Windows: Right click on any PNNE file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.PNNE files". Mac: Right click (or Ctrl-click) the PNNE file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .PNNE is Norton Encrypt for Mac. Because only the current version supports the latest PNNE file format. Search, therefore, e.g. on the manufacturer website after an available .PNNE is Norton Encrypt for Mac update.
  • To make sure that your PNNE file is not corrupted or virus-infected, get the file again and scan it with antivirus software.