Hi All,
I have two columns of data the first has a list of extension numbers the
second have a time duraition in seconds, what I want to do if fine the
highest time duration for a given extension number.
In Cell C1, I Place the extension number I want Eg 6001 and the formula in
Cell D1 will show the highest time value from colum B "186" if I change the
value in cell C! to 6000 the value in cell D1 will change to 240.
How would I do this?
Many Thanks
Mark
A B
1 6000 236
2 6000 180
3 6001 126
4 6000 240
5 6002 156
6 6001 186