You can always go back and learn the rest of them as you need them or when you have mastered the various formulas you are using on a regular basis. There are many different formula used in Excel to create spreadsheets and manipulate the information you place within them. Over time and with a fair amount of studying, you will come to understand how to use them all. Technology has changed so much since last century and all of us who live in this competitive age are forced to use it. How exactly can you fully utilise technology so that gain the maximum benefits from them?
Back during the infancy of this software, most people would use it for just two reasons: to store data (especially customer database) and as a glorified calculator. Perhaps because those are a spreadsheets intended or more practical uses or that people are not really that trained to use its features to the fullest. You would even be surprised that up to now there are office employees who, when they are prompted to make some calculations, they would open their spreadsheet software and do the calculations there. However, as weird as that may sound, it is one of the ways that a spreadsheet can help speed things up in the office. Especially if the employee has been working on spreadsheets for a long time that making fast calculations using the cells has become second nature to him. But there are other good uses for this application.