If you've ever tried building a product catalog in Excel, you know the headache — images float over cells, they don't move ...

By dividing (/) the running total by the sequence number, Excel returns the average of all the values from the start to the ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Gordon Scott has been an active investor and technical analyst or 20+ years. He ...