Hi,

I have a spreadsheet with around 13,000 rows of data, one colum is a mixture of 7 and 8 digit numbers. I want to filter numbers out based on the first 2 numbers in the cells.

eg.

10220063
15220278
17220307
6220367
7221138
7221140

I want the cells that start with 15 to be excluded.

Im sure this is possible but just cant remember how to do it!!!
Thanks in advance!