How to open .IDX0 file extension?

If you cannot open a new file that has been saved in the .IDX0 format you need to download the appropriate software. The manufacturer of .IDX0 files is Jagex; .IDX0 files belong to the Game Files category. After downloading the application from the list available on our website just run an unknown file, and as the default set the newly installed application supporting the .IDX0 files. Activities performed in the order described should solve the problems with all the files in the .IDX0 format.

• What is .IDX0 file?
• How to open .IDX0 file?
• What is .IDX0 file?