DIZ File

What are DIZ files and how to open them

Are you having problems opening a DIZ file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a DIZ file?

DIZ files have multiple uses, and Description in ZIP- is one of them. Read more about the other uses further down the page.

Description in ZIP-file

Files containing the .diz extension are descriptor files that describe the different files contained in a ZIP file. A ZIP file contains multiple files that have been compressed into a single file, making it easier to distribute the files and freeing up storage space. The DIZ file is saved in plain text format and describes what is contained in the ZIP file.

DIZ files were common back in the days of bulletin board systems, where users dialed in and uploaded and downloaded software. The file_id.diz file in the ZIP files were used to generate the file listings on the BBS.

How to open DIZ files

We have identified one DIZ opener that is compatible with this specific type of DIZ file.

Programs that open Description in ZIP- files

Last updated: February 24, 2023

All known file formats using extension .DIZ

While Description in ZIP-file is a popular type of DIZ-file, we know of 3 different uses of the .DIZ file extension. Different software may use files with the same extension for different types of data.

Diz compressed data

These DIZ files contain data compressed by "diz", a free, experimental, open-source file compressor by Roger Flores. It is a PPMC based compressor written in Python. You will need to uncompress the data in order to access it.

While we have not verified the apps ourselves yet, our users have suggested ten different DIZ openers which you will find listed below.

VENDINFO Information

We know that one DIZ format is VENDINFO Information. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Various apps that use files with this extension

These apps are known to open certain types of DIZ files. Remember, different programs may use DIZ files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about DIZ file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.