Program only writes one line into the csv file?

[crash_override]

For some reason the program only writes one line despite the code executing multiple times?

[RavensFan · Accepted solution]

Yes.  Because you keep reopening the file within the loop which will cause it to reset the file pointer to the beginning.  It may also cause a memory leak of open file references you never close.

Put the File Open before the while loop.  Add File Close after the while loop.

Also, clean up your block diagram using the Block Diagram Cleanup button on the toolbar.

[crash_override]

I did not know about that cleanup function. That is amazing, thank you very much.

[cbutcher · Accepted solution]

See also the same question with basically the same answer here: https://forums.ni.com/t5/LabVIEW/Trouble-writing-excel-column-titles-in-my-measurement-file/m-p/4011...