What does the "Step - 1" portion of the For..Next loop do ?

If you loop is


for i = 10 to 1 step -1

do stuff

next i


'i' will start with a value of 10 and decrease by 1 for each iteration of the loop. If it was step -2 the value of i would decrease by 2 for each iteration fo the loop.

so in the example below in the pic it will loop 2 time ?

No that will loop 3 times, when i equals 7, 6 and 5.