My data log works fine and i can get headers to work if i create a string with the headers sepertated my coma's . But the problem is that i need 39 headers which is too many for a string. I have tried creating a STRUCT of strings containing all my headers matching the same amount of fields held in the Data STRUCT. But when the data log is created it only writes the 1st string of my header STRUCT and not the other 38 in the header STRUCT.

Anyone got any ideas?? Thanks Steve.

Thanks.