File Extension Library


.EFC File Extension

  • Category: Various data Files

What is an .EFC file?

.EFC file extension has been classified as Various data Files.

.EFC is Technics Sx KN 6000 keyboard effect memory data

The efc file extension is used by Panasonic Technic series Sx KN 6000 keyboards for files that contain effect memory data. Most likely no longer used audio format without support from Technics.

.EFC file format is deprecated and this file format is no longer supported.

Currently, .EFC file type is not actively used and is obsolete. This usually happens with system files in older operating systems, files from long-discontinued software, or with previous versions of some file types (documents, projects, images, etc.) that were replaced in later versions of the original programs.


How to open:

It is not possible to open files with *.efc extension.

How to convert:

Probably cannot be converted to anything else.

How to Open .EFC file on different platforms

Open .EFC File on Windows

  • Right-click a .EFC
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .EFC file and Select check box "Always use this app to open .EFC files" Press "Ok"

Open .EFC File on Mac

  • Right-click (or Ctrl + Left-click) the .EFC file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .EFC File on Linux

Right click on the .EFC file, choose "Open with" and select a program from the list above

Open .EFC File on iPhone

Select a file. If you don't see an application to open the .EFC file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .EFC File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .EFC files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .EFC files

  1. You need to update the application that you normally use to open .EFC files. Only the latest version of the software supports the current .EFC file format
  2. You need to check the .EFC file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)