2580 C/C++ Header File C/C++ Header File can come with extension .hpp, .hxx or .h and are text header files written in the C or C++ programming language. File extension .h are preffered to be used in C programming language but are also compatable with C++. The .hpp extension is preffered to be used in C++ header file (the "pp" in extension presumably stands for "plus, plus"). These files are mainly categorized as developer files using the correct file extension, they can be inserted to a .cpp source code file, provided the “#include directive” is used. Due to type of this file format a magic bytes sequence could not be established and this format is only recognised by its exension, please contact the PRONOM team if you can provide any more information. 292 UMC Utrecht / University Medical Center Utrecht 02 Aug 2022 02 Aug 2022 fmt/1735 PUID h File extension hpp File extension hxx File extension