Files that contain the .hqx file extension are Macintosh BinHex 4 Compressed Archive files. These files contain information that has been compressed into a 7-bit binary text format from an 8-bit format.
The HQX file format was created so that both forks of a Macintosh file could be bundled into a single file container. This makes it easier to transfer large images, documents and multimedia files across the Internet.
The HQX file format was created for Mac computers and this particular file format is not used in the Windows operating environment. The files can be recognized by the message that is placed in the first line of the file. The first line of each HQX file states "This file must be converted with BinHex 4.0."
Try a universal file viewer
File.org aims to be the go-to resource for file type- and related software information. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files.
If you have additional information about the HQX file format or software that uses files with the HQX suffix, please do get in touch - we would love hearing from you.