Open CHI file

CHI files: what are they and how do I open them?

chi file icon Are you facing difficulties opening unknown files on your computer, or wondering exactly what this file is?
We've got the information and best software solutions for opening these files effortlessly.

.chi file type #1: Microsoft Help file index

A chi file extension is associated with the Microsoft Help and used index files.

Further details:

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.

Open file with:

Microsoft Windows Help icon

Microsoft Windows Help

A software for making help files for Windows programs

Microsoft Windows icon

Microsoft Windows

A series of operating systems developed by Microsoft

Visual FoxPro icon

Visual FoxPro

A set of tools used to create database applications and components

.chi file type #2: Chinese localization language

Files with chi file extension can also be found as localization files in Chinese language.

Further details:

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.

.chi file type #3: ChiWriter document file

Files with chi extension are associated with ChiWriter which is a scientific word processor. They store default document format data.

Further details:

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.

.chi file type #4: CUHP input data

A chi file extension is related to the CUHP (Colorado Urban Hydrograph Procedure) program. Obsolete format.

Further details:

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.

.chi file type #5: TOMBO encrypted data

Files with chi file extension might also be found as encrypted files from TOMBO notemaking program.

Further details:

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.

Open file with:

TOMBO

A note-making software

What is the meaning of a file extension?

File extensions are characters that appear after the dot in a computer file's name. For example, the file "unknown-file.chi" has the file extension "chi". This is used to identify which program should open the file or what file type it is.
File extensions help you organize and manage files. They provide a quick and easy way to identify and associate the file type with the appropriate software.

We can help you open your file

In our database, we have collected a huge number of different file extensions, detailed descriptions, and programs that can be used to open or otherwise work with the file extensions listed in our database.
This database is an invaluable resource for users who want to understand better file extensions and what they can do with them. It also allows users to know different file types with the same purpose.

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We have verified every software listed in our database. The software listed in our database includes links to the developer's or software's website. These links should allow you to download the right program for each file type. Using verified software from reputable sources helps minimize the risk of malware and viruses infecting your computer.