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How Do I Let the User Specify a File Path to Save In When Using the Write to Measurement File Express VI?

Updated Aug 27, 2025

Environment

Software

LabVIEW

I am using the Write to Measurement File Express VI. When I right click on the Express VI and go to properties, I see a path that is set in the Filename.

I want for the user to be able to specify the file path themselves. How do I do this?

1) On your block diagram right click the file path node on the Write to Measurement File Express VI and go to create > control. This will create a control on your front panel where a user can specify the file path.

2) Go to your front panel and view the filename box. Here you can specify the name of the file to which you want to write data.