Home : File Types : UDF File

.UDF File Extension

File Type 1Universal Disk Format File

DeveloperOptical Storage Technology Association
3.2 (32 Votes)
CategoryDisk Image Files

What is a UDF file?

File created in the Universal Disk Format (UDF), a disc imaging format used for storing files on optical media; stores a collection of files using the directory structure specified in the UDF standard; can be used for burning DVDs, CDs, and other optical media; allows files to be deleted and modified on the target disc even after they have been written.

More Information

The UDF standard is developed and maintained by the Optical Storage Technology Association (OSTA).

NOTE: Even though the UDF format is commonly used, the ".udf" extension is not. Instead, disc burning applications typically save images in their own formats and then burn them using the UDF standard.

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Programs that open UDF files

Updated 11/20/2012

File Type 2Microsoft Excel User-defined Function

3.0 (11 Votes)
CategoryExecutable Files

.UDF File Association 2

User-defined script written or recorded in Visual Basic that executes a function in Microsoft Excel; can be created by selecting "Module" from the Insert menu in Excel.

Programs that open UDF files

No longer supported by Microsoft Excel
No longer supported by Microsoft Excel
Updated 12/16/2006

About UDF Files

Our goal is to help you understand what a file with a *.udf suffix is and how to open it.

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