The 40 essential tips that all Excel users need to know. Crowdsourced by more than 300 contributors who collaborated on choosing the 40 best Excel tips, MrExcel XL provides users with a concise book that can be absorbed in under an hour. Includes a bonus 30 tips, keyboard shortcuts, Excel jokes, Excel cocktails. Anyone who uses Excel will be able to turn to any page and pick up tips that will save them hours of work.