This page provides a list of those file extensions that start with .h. The information given below is a summary and further details can be found by clocking on the summary next to the file extension of interest.

.hHeader file.
.halHAL code source file.
.hamDescent 2 game data attribute file.
.hcspHTML page generated from Stellent CMS.
.hdbHansa DataBase file.
.hdmpWindows Heap Dump File.
.hexMacintosh binary file.
.hhcHTML Help Workshop Contents file.
.hhfHand Held Format file | HLA Header file.
.hhkHTML Help Workshop Index file.
.hhpHTML Help Workshop Project file.
.hiDescent 2 high score file.
.hlpWindows standard help file.
.hmpMusic file.
.hogDescent 1/2 archive file.
.holMicrosoft Outlook Holiday file.
.hppC++ header file.
.hqxMacintosh binary file.
.htHyperTerminal file.
.htaHypertext Application.
.htcHTML Component file.
.htmHTML file.
.htmlHTML file.
.httFolder settings file.
.hxmDescent 2 game data attribute file.
.hxsMicrosoft Help Compiled Storage file.
.hxtHash extension plugin (Animation Master).
.hxxC++ header file.

For further information about the file extension please do click on the summary next to the file extension in the list above.

We would like this listing to be complete and comprehensive, but recognised that we may have missed one and that new file types are being used all the time. So if you know of a file type that we have missed that should be listed here then please let us know.