How Do I Change the Default Version My Files Open in National Instruments Software

Updated Aug 13, 2019

Reported In


  • LabVIEW
  • DIAdem

Operating System

  • Windows

Issue Details

I have .tdms files and LabVIEW VIs that when I open from the Windows directory they always open up in version 2017 even though I have and use version 2018. How can I change the default version?


In Windows, you can navigate to the Start  menu, select Settings  > Apps Default apps. Then scroll down until you see Set defaults by app as show below. Select it and then  search for the version you want to set as default and click Manage.

This will display all associated extensions to that type of software and the current default version, make sure you change it to the version you desire as default.