Is there anyway to programmatically write to a *.wft header using Labview?

[pmac]

I am writing a Labview 7.0 program (windows xp 2002) that will read data from a .wft calibration file, make some calculations, and then use the results of those calculations to offset and scale strain data that is also contained in .wft files. If I can write the calculated values to the strain data header then that data will be permanently offset and scaled. Otherwise, everytime the strain data is viewed the calibration file will be needed. The .wft file permissions indicate that anyone can read or write to the file but when I try to write I get a file permission error and the write does not occur. Is there something else I should be doing?

[Andy F.]

pmac,

From the research that I have done, you should be able to read that file and write the file using the binary file I/O VIs.  You do need to know the format of the file however to read it.  You might try to just read it first and work from there.  Do you get permission errors when trying to read the file as well?  Do you have problems reading and writing other files?  Do you have a small test wft file that you might be able to post? 

Let me know!
Andy F.