Files with udf file extension may be also found as special user defined functions settings files for Microsoft Excel.

There are 5 other file types using
the UDF file extension!

udf icon.udf - Windows NT/XP uniqueness database

empty icon.udf - Uyap Dokuman Editoru document

empty icon.udf - SQL user defined function script file

empty icon.udf - Universal Disk Format image

empty icon.udf - PI Expert document

UDF file extension - Microsoft Excel user defined function

What is udf file? How to open udf files?

File type specification:

Settings, options, themes or skins file type icon Settings, options, themes or skins file type

udf file icon: udf filetype icon

The udf file extension is associated with Microsoft Excel, one of the most popular and powerful tool you can use to create format spreadsheets, graphs and much more.

The .udf files are used to store user-defined functions, which Microsoft Excel allows users to create. Using the power of Visual Basic for Applications (VBA), users can code complicated formulas only once and use them again and again in their spreadsheets and workbooks.

These functions can be used just like any built-in function already available in Microsoft Excel.

The default software associated to open udf file:

Microsoft Excel icon

Microsoft Corporation logoMicrosoft Excel  Microsoft Windows software

Company or developer:
Microsoft Corporation

A popular spreadsheet application distributed with Microsoft Office suite, Excel is offers calculating, contains graphing tools, pivot tables and own programming language based on Visual Basic.

Excel supports charts, graphs or histograms generated from specified groups of cells. Excel also can change data between other Microsoft Office applications. It is available for Microsoft Windows, Mac OS X (macOS) and various mobile platforms.

Microsoft Office icon

Microsoft Corporation logoMicrosoft Office  Microsoft Windows software

Company or developer:
Microsoft Corporation

Microsoft Office is popular productivity suite for Microsoft Windows. Microsoft Office contains a set of applications and services used to work with documents (Microsoft Word), spreadsheets (Microsoft Excel), presentations (Microsoft PowerPoint), databases (Microsoft Access) etc..

Microsoft Office can be also used to manage e-mail accounts, tasks, calendars and contacts (Microsoft Outlook). 

Microsoft Office for Mac icon

Microsoft Corporation logoMicrosoft Office for Mac  Apple macOS / Mac OS X software

Company or developer:
Microsoft Corporation

Microsoft Office for Mac is popular office suite that contains a set of applications and services used to work with documents (Microsoft Word), spreadsheets (Microsoft Excel), presentations (Microsoft Powerpoint) and manage e-mail accounts, tasks, calendars and contacts (Microsoft Outlook).

Help how to open:

You cannot open these files manually, they are generated whenever user-defined functions are created.

How to convert:

This type of *.udf files are basically settings, so there is really no way how to convert them or any reason to do so.

List of software applications associated to the .udf file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open udf file, edit udf file, convert udf file, view udf file, play udf file etc. (if exist software for corresponding action in File-Extensions.org's database).

Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting udf files.

Software that open udf file - Microsoft Excel user defined function

Programs supporting the exension udf on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open udf file action.

Microsoft Windows:

Apple macOS / Mac OS X:

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