Some torrent clients create .idx files for partially downloaded data. The file keeps track of which pieces of the download you already have. If you close and reopen the client, the .idx file helps resume the download without re-checking every piece.
| If the .idx is from… | What to use | |----------------------|--------------| | DVD subtitles | Any video player (VLC, MPC-HC) – load the video + .idx + .sub | | Database (dBASE, FoxPro) | The original database software, or a viewer like DBF Viewer | | Torrent client | The same torrent client (e.g., qBittorrent) – it reads it automatically | | Unknown source | A text editor (Notepad++, VS Code). Most .idx files are (gibberish in a text editor), but some are plain text. | what is .idx file