The File Extensions Database


.EFM File Extension

  • Developer by: SourceForge.net
  • Category: Text Files

What is an .EFM file?

.EFM is Electronic Fiction Manuscript file

The efm file extension is associated with the Electronic Fiction Manuscript (EFM), a file format used to store rich formatted document created as a better alternative to popular Rich Text Format.

The efm file stores document.


How to open:

Use EFM to work with *.efm files to work with *.efm files.

How to convert:

Use compatible tools to export *.efm files to other formats.

How to solve problems with EFM files

  • Associate the EFM file extension with the correct application. On :
    Windows: Right click on any EFM file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.EFM files". Mac: Right click (or Ctrl-click) the EFM 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 .EFM is Electronic Fiction Manuscript file. Because only the current version supports the latest EFM file format. Search, therefore, e.g. on the SourceForge.net manufacturer website after an available .EFM is Electronic Fiction Manuscript file update.
  • To make sure that your EFM file is not corrupted or virus-infected, get the file again and scan it with antivirus software.