.HXC File Extension
File TypeMicrosoft Help 2 Collection Definition File
File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.
What is an HXC file?
File used by Microsoft Help 2.x help documents; defines the contents of a help collection and includes information such as the help project title, the help registration information, and pointers to the various help content files; used for building the .HXS help file.
NOTE: Microsoft Help 2.x projects can be edited with older versions of Visual Studio through version 2008.