HHH

Power C precompiled header data
File type: Source code and script file
An hhh file extension is related to the Power C compiling tool. An hhh file stores precompiled header data.
What is hhh file?
File type category:
Source code and script file
Date updated: September 27, 2018
The hhh file extension is related to Power C compiler and used for files that contain precompiled header.
Power C was an ANSI compatible C compiler for DOS.
Most likely some old format without support. No further information could be found.