Excel is a program on the computer to organize numbers on a spreadsheet. There are many different features in Excel, including sorting and using formulas to create numbers into a large number of cells both in the rows and columns. However, the user must use specific symbols to create these formulas. The user must memorize or know where to find these symbols and equations.
The more that a user uses Excel, the more this user will learn the formulas. There are two familiar wildcard characters that Excel recognizes. These are the asterisk and a question mark. If you want Excel to know that you want to create a formula in a cell, then you type in the equal signs.
A wildcard is a very useful inclusion to the character set in computing. It allows for a character to vary amongst several options. For instance, if you had a word with one letter missing and you did not know what that was - such as in the case of a surname - you could put a wildcard character and this would allow for completion despite the missing letter. The wildcard characters are normally * but sometimes ?