If you found an IDX file next to a movie, it’s a . It contains the timing and positioning data, while an accompanying .SUB file contains the actual images of the text. How to open IDX file (and what it is) - File.org
Finding the right depends entirely on what kind of file you actually have. The ".idx" extension is used by many different programs for everything from movie subtitles to database indexes . Best Free IDX Viewers by File Type Primary Use Recommended Free Software Subtitle Index DVD/Video subtitles (usually paired with .SUB) VLC Media Player , MPC-HC, PotPlayer Subtitle Editor Editing or converting VobSub files Subtitle Workshop, DVDSubEdit Mail Index Outlook Express or AOL mail databases idx file viewer free download
Microsoft Outlook (for import), Notepad++ (to view raw text) FoxPro, Informix, or ArcGIS metadata DBF Viewer , ArcGIS Pro (read-only) System Cache Java applet or Android gallery thumbnails File Viewer Plus (Universal viewer) 1. Subtitle IDX Files (Most Common) If you found an IDX file next to a movie, it’s a