File Extension Library


.FR4 File Extension

  • Developer by: Sirotinsky Arthur and Olga Fedorenko
  • Category: Various data Files

What is an .FR4 file?

.FR4 file extension is created by Sirotinsky Arthur and Olga Fedorenko. .FR4 has been classified as Various data Files.

.FR4 is Fractal Explorer quaternion Spots in internal parametrical format

The fr4 file extension is related to Fractal Explorer, a freeware fractal generator that can produce mysterious and beautiful mathematically-based images. An *.fr4 file contains saved data in quaternion Spots in internal parametrical format.


How to open:

There is no known way how to open fr4 extension file manually.

How to convert:

Files with fr4 extension have no known conversion.

How to Open .FR4 file on different platforms

Open .FR4 File on Windows

  • Right-click a .FR4
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .FR4 file and Select check box "Always use this app to open .FR4 files" Press "Ok"

Open .FR4 File on Mac

  • Right-click (or Ctrl + Left-click) the .FR4 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 .FR4 File on Linux

Right click on the .FR4 file, choose "Open with" and select a program from the list above

Open .FR4 File on iPhone

Select a file. If you don't see an application to open the .FR4 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 .FR4 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 .FR4 files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .FR4 files

  1. You need to update the application that you normally use to open .FR4 files. Only the latest version of the software supports the current .FR4 file format
  2. You need to check the .FR4 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)