dat

The DAT file type is a data file that is created by a specific application and can typically only be opened by that application. A DAT file can contain data in a text or binary format. Text-based DAT files can be opened and viewed in a text editor, although DAT files are not meant to be opened manually by the user, but are used as a support for the application.

Mime type: application/octet-stream, zz-application/zz-winassoc-dat