A daily updated filename extension database!

UND file extension

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

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

Table of Contents

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

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

✅ MOUSE Urban Network Datafile

UND file is a MOUSE Urban Network Datafile. MOUSE is an advanced, powerful, and comprehensive surface runoff, open channel flow, pipe flow, water quality and sediment transport modeling package for urban drainage systems, storm water sewers and sanitary sewers.
UND format description not yet available
Category: Data files
Application: MOUSE
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
UND aliases:
UND related links:
UND related extensions:
MOUSE Project

MOUSE Runoff Data

MOUSE HD Results Data

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

🚫 The .und file extension is often given incorrectly!

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

hnd, ind, nd, nud, ubd, ud, udn, ugd, umd, unf, unr, uns, unv, unx

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

HNSKY Deep Sky Database
Alpha Five User Definition Data
Unix Text
Adobe InDesign Document
Splinter Cell: Blacklist UMD Data
Now Up-To-Date Calendar Document
LaTeX Processed Index Data
Universal NES Image Format ROM
UltraBac Data
SQL Script Indexes

🔴 Can't open a .und 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 .und 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 .und file extension, write to us!

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