Remove Time Column When Using Write To Measurement File Express VI

Updated Dec 11, 2023

Reported In

Software

  • LabVIEW

Issue Details

I am using the Write to Measurement File Express VI and would like to remove the time column when viewing the TDMS file using the Excel file. I have used the Empty Time Column option in the X Values Column. However, when the TDMS file is generated and I viewed the TDMS in an Excel File, it still has the Time Column.

The expectation is to have the data shown in the below picture. 
renditionDownload.jpeg

Solution

These columns are implicitly written when the input type to TDMS Write is waveform as the following figure shows. Since the express VI uses Signal (kind of wave form) as data input, no matter how you configure X Value columns (actually this is an explicit column) in Write Measurement File express VI, the implicit column of waveform data type will always exists as shown below.
2023-10-20_15h17_46.png

Some workarounds to remove this Time column:
  • Set the output to Excel File format and set the X Value Columns to Empty time column.
  • Delete these columns by post-process.

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