Another source of information will be the bills and receipts that you have received over the past quarter. If you have not kept such documents and records before, then now is a good time to start. The good organisation of your important financial documents, and orderly filing of bills and receipts, will stand you in good stead for controlling the family budget when it is set.
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?