labview to read and white into .csv file only

I have a security question.

Is it possible for labview to read/write into a .CSV file only and make it not applicable to the user?

for instant, labview writes to file OUTPUT.CSV, 

my current system, on windows xp, i can go to output.csv and use notepad/excel to read/write  and save output.csv data.

i want to make it not accessible to write or modify output.csv (ONLY POSSIBLE IF DONE USING LABVIEW PROGRAM).

how would i do something like that?

thanks in advance.