Home : File Types : H File

.H File Extension

File TypeC/C++/Objective-C Header File

3.6 (96 Votes)
CategoryDeveloper Files

What is an H file?

An H file is a header file referenced by a C, C++ or Objective-C source code document. It may contain variables, constants, and functions that are used by other files within a programming project. H files allow commonly used functions to be written only once and referenced by other source files when needed.

Open and view .H files with File Viewer Plus.
Programs that open H files
Updated 8/24/2016

About H Files

Our goal is to help you understand what a file with a *.h suffix is and how to open it.

The C/C++/Objective-C Header file type, file format description, and Mac, Windows, Linux, and Android programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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