JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. To Edit a UDL File Navigate to the folder containing your .udl files with Windows Explorer. Double-click on the .udl file. The Properties dialog for the select .udl file opens. Make the desired changes to the file and click OK to save the changes. CAUTION: Editing the UDL file with a text editor may corrupt the file. Parent topic: Connecting to an OLE DB Data Source