A daily updated filename extension database!

DIAG file extension

The table below provides useful information about the .diag file extension. It answers questions such as:

  • What is the .diag file?
  • What program do I need to open a .diag file?
  • How can the .diag file be opened, edited or printed?
  • How can I convert .diag files to another format?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Microsoft Windows Troubleshooting Pack Designer Data

DIAG file is a Microsoft Windows Troubleshooting Pack Designer Data. The Windows Troubleshooting Pack Designer is provided as part of the Windows software development kit (SDK).
DIAG format description not yet available
Category: Data files
Application: Microsoft Windows SDK
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
DIAG aliases:
DIAG related links:
DIAG related extensions:

Other types of files may also use the .diag file extension.

🚫 The .diag file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

dag, dia, dig, siag

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Sound Designer Audio
Dia Diagram
World Championship Poker 2 Game Data
Digilink Format Audio Data
Siag Spreadsheet Document

🔴 Can't open a .diag file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .diag file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .diag file extension, write to us!

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Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
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