How to Open UDF Files

Written by tyran dewalt | 13/05/2017
How to Open UDF Files
(Comstock Images/Comstock/Getty Images)

You can open User Defined Function (UDF) files with Microsoft Excel. Microsoft Excel User Defined Functions are also known as custom functions. Users create UDF files using Microsoft Excel's workbooks. UDFs allow users to create math functions, array formulas, text manipulation and diagnostics. You can also use Excel spreadsheets to create UDF files.

Click the "Start" button or Windows logo in the left corner of the screen to open the Start menu.

Click "All Programs" and open the "Microsoft Office" folder.

Open "Microsoft Excel." Click "File" on the menu bar.

Click "Open." Locate the UDF file you wish to open. Highlight the file and click "Open."

By using the site, you consent to the use of cookies. For more information, please see our Cookie policy.