.IDX255 File Extension

Runescape Cache File

Developer Jagex
3.0  |  1 Vote

What is an IDX255 file?

Cache file saved by Runescape, an online multiplayer game; stores game progress on a player's local machine; used when resuming a game online; typically named "main_file_cache.idx255" and is saved with several other cache files.

Open over 400 file formats with File Viewer Plus.Free Download

Programs that open or reference IDX255 files


Verified by FileInfo.com

The FileInfo.com team has independently researched the Runescape Cache file format and Windows apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

If you would like to suggest any additions or updates to this page, please let us know.