The document provides tips on Excel functions that community managers should know from analysts at Simply Measured. It discusses functions like SUM, DATE, DAYS, HOUR, WEEKNUM, and MONTH that are useful for manipulating date ranges and calculating metrics over time periods. It then profiles three analysts at Simply Measured - Lori, Deepti, and Vikram - and examples of functions they commonly use like IF, COUNTIF, SUMIF, IFERROR, NETWORKDAYS, MAX, MIN, LARGE, SMALL, LEFT, RIGHT, and MID.