Microsoft Help file index
File type: Various data file
A chi file extension is associated with the Microsoft Help and used index files.
Found 5 different file type records with the same chi filename suffix.
File type category:
Various data file
Date updated: December 30, 2024
The chi file extension is related to the Microsoft Help file index files.
Index file used when you ship chm files that are likely to remain on a CD-ROM, as in the case of the MSDN Library.
The chi file allows certain navigation information to be installed locally on a hard disk for quick access, while the main content lives on the CD-ROM.
A chi file should not be used in a non-CD-ROM scenario. When a chi file is not used, all the information that would be in it remains in the chm itself.
Microsoft Compiled HTML Help is a proprietary format for online help files, developed by Microsoft and first released in 1997 as a successor to the Microsoft WinHelp format.
It was first introduced with the release of Windows 98, and is still supported and distributed through Windows XP, Vista and Windows 7 platforms.
Microsoft Windows Help (Microsoft Windows)
Microsoft Windows Help (Microsoft Windows)
Microsoft Windows (Microsoft Windows)
Visual FoxPro (Microsoft Windows)
File type category:
Various data file
Date updated: October 5, 2018
The chi file extension is also commonly used for various localization files in Chinese language. The chi file is stored in both text and binary format. Used in many different programs and various video games.
Try text editor to view content of *.chi files.
Probably cannot be converted to other formats.
File type category:
Document file
Date updated: July 7, 2017
The chi file extension was also used by ChiWriter, a scientific word processor that was sold by Horstmann Software Design Corporation between 1986 and 1996. A *.chi file was the default document format of ChiWriter.
File type category:
Various data file
Date updated: January 16, 2019
The chi file extension is also used for some sort of input data files used by Colorado Urban Hydrograph Procedure (CUHP) program.
Most likely some old format without support. No further information could be found.
File type category:
Encoded and encrypted file
Date updated: February 21, 2019
The chi file extension is also used for encrypted files used by the TOMBO project.
TOMBO is a note program for Windows with encryption capabilities.
Most likely some old format without support. No further information could be found.
You can open these files using TOMBO.
TOMBO (Microsoft Windows)
TOMBO (Microsoft Windows)
TOMBO (Microsoft Windows)
Language