How to Fix .MU File Extension Errors    |    What is the .MU File Extension?    |    Repair .MU File Errors

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What is the .MU File Extension?

.MU File Extension Description:

Quattro Pro is a spreadsheet program that provides features pioneered by Windows products such as mouse option, WYSIWYG display, pull-down menus and graphing capabilities. In addition, it also contains features similar to the 1-2-3 sliding bar menu and offers three alternatives such as the version of the original Quattro menu, the 1-2-3 like sliding bar, and the Quattro Pro menu tree. The data contained in the Quattro Pro menu trees use the file extension MU.

The Quattro Pro menu tree has a Common User Access-compliant pull down menu similar to the look and feel of 1-2-3. None of 1-2-3's code was copied; only the words and structure were repeated in the Quattro menus. By activating the Quattro Pro menu interface, the 1-2-3 menu commands can be seen on the screen and can use Quattro as if they were using 1-2-3.

However, Quattro Pro has its own files with the .mu file extension for the display, interaction, and execution of macros when using the Quattro menus. Its commands are initiated by clicking on pulldown menus at the top of the screen or by clicking on the speed buttons below the menu lines.

The files with the .mu file extension come from the customized menu tree. They appear on top of the screen right after the program is loaded. These files contain menu items that can be accessed by clicking on the menu the underscored letter of the item names. They can also be accessed by the /X command on the keyboard where X indicates the letter in the menu name. In addition, submenus appear when the main menu heading of the file with the .mu file extension is clicked on and can be accessed in the same manner as the main menu heading is accessed.

Each file with the .mu file extension is saved with a new unique filename to avoid overwriting the previous files. They can be entered and saved using the Save As command. In case the original file with the .mu file extension is accidentally overwritten by not changing its name, the original file is then lost and cannot be recreated, unless Quattro Pro is configured to create a backup copy of the file.

Author: Borland Corporation
Author URL:
Related Applications: Quattro Pro
Common Path: C:/ Program Files


Run a Free Scan to check for MU related errors & to optimize PC performance.

Do you have errors with .MU files?

The Cause for .MU files Errors:

A common and likely cause for .MU files errors is failure in the Windows registry - cleaning is essential to protect against further damage in other software and/or system devices. Receiving these errors places your computer in danger for fatal crashes, blue screen errors as well as hardware failure.

.MU files Errors - Common Symptoms:

.MU files error symptoms include software freezes, system shut down or start up troubles, jerky system operation, laggy behaviour, input freezing, internal speaker beeps, problems accessing application files and issues while installing applications.

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How to Fix .MU File Extension Errors    |    Repair .MU File Errors    |    What is the .MU File Extension?