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.DIZ File Extension

File TypeDescription in Zip File

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CategoryText Files

What is a DIZ file?

A DIZ file is a plain text file that describes the program or files within a .ZIP archive in which it is also included. It is a small file since it only contains a brief description that typically consists of 10 lines of text or less with each line being less than 45 characters. DIZ files can be opened using a text editor, such as Microsoft Notepad or Apple TextEdit.

More Information
Screenshot of a .diz file in Microsoft Notepad 6
DIZ file open in Microsoft Notepad 6

DIZ files were originally used for distributing files via BBS (bulletin board systems) with the FILE_ID.DIZ filename. The FILE_ID stands for "file identification" and DIZ stands for "Description in Zip file." The information contained in FILE_ID.DIZ files provided system administrators with helpful descriptions of each file that was uploaded to the system.

As the popularity of bulletin board systems declined over the years, FILE_ID.DIZ files became less common. However, DIZ files are still used by the Warez scene, which is a community of people that illegally distribute copyrighted content. These users typically package FILE_ID.DIZ files with their ZIP distributions of unlicensed software.

Common DIZ Filenames

FILE_ID.DIZ - Common filename for the DIZ text file that describes the content stored in a ZIP archive.

Open and view .DIZ files with File Viewer Plus.

Programs that open DIZ files

Included with OS
Updated 6/6/2019

About DIZ Files

Our goal is to help you understand what a file with a *.diz suffix is and how to open it.

The Description in Zip file type, file format description, and Mac and Windows programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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