Excel logic question

I need to add up all positive values in F column and display the value in an empty cell.

I have used logic in XML plenty times, and noticed excel has the feature, so that is where I started, but can't find much info on it. Something like "If any number in column F is >0, add it together and put the sum in this cell")

or maybe there is another way to do it.

=SUMIF(F1:F301,">0")