A message will appear ' This change will be applied to all files with.In the programs list, click Everfocus Ef Player EverFocus EF Player program Or other appropriate program that you want.Click *.AVR (e.g example.avr) file and click information -> Open With.Select check box for Always use this app to open.In the Open with dialog box, click Everfocus Ef Player EverFocus EF Player program Or click Browse to locate the program ( *.exe) that you want.Right-click a *.AVR (e.g example.avr) file and click Open With.Associate default Everfocus Ef Player EverFocus EF Player program for *.avr (EverFocus Recording File) files.You must have supported software programs installed for EverFocus Recording File on your system such as EverFocus EF Player.AVR files on Windows and MacOs, we have solution to those issues such as: Can't Open AVR Files? There are few common issues with the EverFocus Recording File.