Open .idx Files Jun 2026

Other Windows-based media players that support external subtitle tracks.

| Type of .IDX File | Likely Location | Recommended Program | | :--- | :--- | :--- | | Video Subtitle | Paired with .sub file | VLC Media Player | | DVD Index | Inside a VIDEO_TS folder | MakeMKV, HandBrake | | Outlook Search Index | C:\Users\[Name]\AppData\Local\Microsoft\Outlook | Do not open (Outlook only) | | SoftRIP Print Monitor | Printing workflow folders | SoftRIP software | | Database Index | Database installation folders | Parent database (Oracle, SAP, etc.) | open .idx files

If you delete a database index file, you will not lose the actual data (usually), but the software that relies on it will likely crash, run incredibly slowly, or fail to find the records it needs. The software will essentially be "blind." run incredibly slowly