Hi guys, I'm getting some issues with timing: it's taking ages What I have: 46 .csv files circa (number may vary) Each of those has 6100 rows What I have to do: Compare a certain column (number) and if it's higher than the current one, update it   I'm obviously doing this with 2 For cycles, one into each other but it's really slow. It takes about 65/70 seconds every 1000 records. Is there something else I can try to speed up the process? This is the For part I have: For $i=1 To $Li