OS/2 configuration
File type: Configuration file
Files with ch extension can be found as old configuration file from OS/2 operating system.
Found 3 different file type records with the same ch filename suffix.
File type category:
Configuration file
Date updated: April 25, 2017
Record marked as obsolete and not updated for a long time.
The ch file extension is associated with the IBM OS/2, an operating system for IBM-PC compatible computers developed by Microsoft and IBM, later only by IBM.
The ch file stores configuration data for OS/2.
When placed in proper folder, the OS will load the configuration data automatically.
Configuration files cannot be typically converted to anything else.
Software apps that manage or store settings in ch files:
Other operating systems or devices
File type category:
Source code and script file
Date updated: September 28, 2026
Clipper was originally developed by Nantucket and later distributed by Computer Associates. It was designed primarily for creating database applications, although it is a general-purpose programming language and was used almost exclusively for database programs.
A CH file normally supplies reusable preprocessor definitions and other shared source material for Clipper program files. The Clipper compiler processes the included content as part of the source program; the CH file is not a standalone application or database.
Clipper software was used mainly on DOS systems and is now a legacy development technology. Existing CH files may still be encountered in older Clipper database applications and source-code projects.
A CH file is a plain-text source file, so it can be viewed with any text editor. To use it as intended, open the associated Clipper project and compile the program with a Clipper compiler that can locate the file referenced by the source code.
Because Clipper applications were primarily developed for DOS, running the original development tools may require a suitable legacy DOS environment or emulator.
There is no meaningful general-purpose conversion for a Clipper include file. Its contents are source-code definitions and compiler directives rather than document data that can be exported to another file format.
The text can be edited manually, and moving the application to another programming language or development system requires adapting the include definitions and the source code that uses them.
File type category:
Accounting, financial and tax file
Date updated: September 27, 2026
The CH file extension is associated with eSignal, software for viewing and analysing financial market data. The file belongs to eSignal's application data and is intended to be used within that software.
Open a CH file with eSignal on Microsoft Windows. If the file is already associated with eSignal, double-clicking it may open it in the program; otherwise, open it from eSignal's file-opening interface.
Open the CH file in eSignal and use an applicable export function if the software provides one for the data it contains.
Software applications that can open ch files:
Microsoft Windows
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