File archive compressed with the WinHKI file archiving program; uses HKI3 compression, which is optimized for file types that are not compressed efficiently with the .HKI1 or .HKI2 compression formats.
Program(s) that open hki3 files
Windows: WinHKI
Information from FileInfo.com - The File Extensions Resource.
http://www.fileinfo.com/extension/hki3
