Can not open any file except xcf: "Unknown type of the file"
GIMP Version: 2.10.20
Operating System: Windows 8.1. x64
Package: gimp-2.10.20-setup-1.exe / gimp-2.10.8-setup.exe
Issue Description
GIMP 2.10.20 has been installed on Windows 8.1. by the installer from this site. After the installation it can't open any file, neither .jpg nor any other picture by Menu - File - Open (Ctrl+O). Meanwhile .xcf file created eralier could be opened. After marking the flag "Show all type of files" they are seen in a dialog window but when opening them GIMP says "Unknown type of the file".
Additional Information
Previous version of GIMP (2.8 ?) had no this problem. I tried to reinstall GIMP twice. Assigned GIMP as the default program for graphic files, installed 2.10.8 instead 2.10.20 - the same reaction.
Edited by Andre Klapper