This error occurs when you try to read from a file that is outside of the file format supported by the Read From Measurement File Express VI. For instance, an Excel file that contains a .xlsx
The Read From Measurement File Express VI is configured to read from a text (LVM) file, Binary (TDMS) file, or a Binary with XML Header (TDM) file. If the file that you're trying to access has a different extension than .lvm
, it will not be able to be read correctly.
In order to read your Excel data, you will need to save it as a tab delimited text file as outlined in the KnowledgeBase article Reading Microsoft Excel Numeric Data Into LabVIEW
. When you save the file as a .lvm
, be sure to configure the Read From Measurement File Express VI by double clicking it to open the Configure Read From Measurement File box. Then, under File Format
, choose the Text (LVM)