When you rip or work with DVD files, you'll find an .idx file alongside .vob and .ifo files.
Here are the most common uses for .idx files: what is .idx extension
| Likely Content | Recommended Program | | :--- | :--- | | | VLC Media Player (Open the .avi or .mkv file; the .idx/.sub should be in the same folder) | | DVD Backup | VLC or MPC-HC (Open the VIDEO_TS.IFO file) | | Unknown / Generic | Notepad++ (It's a text file. If you see timestamp: 00:01:23 , it's subtitles. If you see gibberish, it's a database file) | When you rip or work with DVD files, you'll find an
In database systems, .idx files can be used as index files to improve query performance. These files contain a data structure, such as a B-tree or a hash table, that facilitates quick lookup, insertion, and deletion of data. If you see gibberish, it's a database file)
To open and use .idx files, you'll need an application that supports the specific file type. Here are some examples: