Microsoft Excel has a huge variety of formulas for a variety of situations, and most of them are fairly complex to use. An Excel 2013 Formulas study guide gives the user access to most or all of those formulas in a quick and easy manner. Instead of having to search the internet or flip through a large book, the user can simply find the categorized formula in the study guide and apply it with the tips given. A study guide organizes the formulas in an intuitive format and can easily be kept near the computer for convenient reference any time.