Files with doz file extension might be found as compiled Zardoz archives for a video game that can be played in DOSBox.
DOZ file extension - Zardoz archive
What is doz file? How to open doz files?
File type specification:
The doz file extension is mainly related to Zardoz, a cross-platform gaming environment built around DOSBox.
The doz file is a compiled Zardoz archive that contains all the data needed to play the game, including the game's executable and data files, metadata about the game such as its title, publisher, release year, and other details, together with any related assets such as documentation, maps, artwork, and website links and of course DOSBox configuration profile.