| File Type 1 |
Index File (Most common) |
| File Format |
File |
| Common? |
No |
| File Description |
Stores an index of files used by various programs; used by search functions to speed up searches; once a hard disk, directory of files, or database is indexed, the data can be searched and sorted more efficiently.
Used by Microsoft FoxPro, Corel QuickFinder, ESRI ArcView, ICQ, and other programs. |
| Program(s) that open idx files |
Mac / Windows: Various programs |
| File Type 2 |
HMI Historical Log Index File |
| File Format |
File |
| Common? |
No |
| File Description |
Index for log files created by InTouch Human-Machine Interface (HMI) software or ReportBuilder with ODBC Connector pack for InTouch; used for running reports from collected data |
| Program(s) that open idx files |
Windows: Wonderware InTouch; WorkSmart Automation ReportBuilder |
| File Type 3 |
Outlook Express Mailbox Index File |
| File Format |
File |
| Common? |
No |
| File Description |
Stores an index of mail messages stored in an Outlook Express mailbox (.MBX file); should be located in the same folder as the mailbox files; required for importing old Outlook Express mailboxes into Outlook Express 5 or later. |
| Program(s) that open idx files |
Windows: Microsoft Outlook Express |
| File Type 4 |
Navigation POI File |
| File Format |
Proprietary File |
| Common? |
No |
| File Description |
Contains points of interest (POI) for a VDO Dayton GPS portable navigation device (PND); includes a header and a set of POIs; each POI consists of a 3 byte index, then 8 bytes for the coordinates and 46 bytes for name and type.
IDX files can be transferred to VDO Dayton PNDs via USB. |
| Program(s) that open idx files |
Windows: Transfer to a VDO Dayton device |
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