To open Hierarchical Annotation Tables or .HAT files on Windows PC, you can use one of these Text Editors or free online tool called HAT Viewer.

Choosing a text editor is all about finding one that's useful and easy to use. Whether you're a programmer or just a normal user who edits config files, there are plenty of options out there ...

VZ Editor, a popular text editor for MS-DOS, has been made open source 30 years after its last update, and the source code and image files have been made public on GitHub.

MS-DOS Editor was included the 1991 release of MS-DOS 5.0 as the new default text editor, based on the QBasic IDE. Microsoft continued bundling it in all versions of MS-DOS after that.