Excel MID Function  Microsoft Excel MID Function Tutorial
Microsoft Excel MID Function Tutorial
Microsoft Excel MID Function Tutorial
What is the Microsoft Excel MID Function?The MID function is a computer program that you run from a worksheet cell formula. It can start from any character position in a piece of text and move right returning n characters. The number of characters returned is based on the number of characters you specify. You run the MID function by typing its name in a formula then followed by the information it is suppose to parse (separate). The MID function is generally used to separate some sub set of text like states, zip codes, ID, names... from a piece of text. For example, if you have a worksheet with 2 character codes embedded in the middle of its text at certain position and you wanted to extract those codes, then you would use the MID function. Reversing your thinking, the MID worksheet function can also be used to remove unwanted text say everything after character 6 is garbage and unwanted. So MID would be used in this instance as a removal tool instead, it is just how you think of the problem. This is often called data cleaning or data mining. How Do You Type the MID Worksheet Function in a Formula?Whenever you type a formula in a worksheet cell, this is called syntax or grammar. The general MID function syntax has a format like this when you type it in a worksheet cell: =MID(text, start_num, num_chars) Where text, start_num, num_chars ..... are called the function argument list. Remember, you are running a computer program at this point so the program needs information to operate and that is why there is an argument list. When you see an argument list and you see square brackets [ ] around the argument name, this means the argument is optional and you do not have to include it when typing unless you need it. So for the syntax above, you need to include all three arguments for the MID function when typing it in a worksheet cell formula in order for it to calculate correctly. What argument values can be used are discussed below. Remember functions expect certain things in their argument lists, if you do not put the correct information in the list they will generate an error when run. MID Worksheet Function Argument Definitions
How Do You Run the MID Function?Since the MID function is a computer program, it runs when you press Enter to enter the formula that contains it. If any of the arguments are wrong, the function will return an error. What Do I Type for a MID Function Argument?When typing the LEFT function in a worksheet cell formula, you need to replace the argument list with arguments separating each one with a comma (arg1,arg2...). Some typical arguments you can use are:
* It is possible to name a cell or group of cells on a worksheet and use that name in place of a range reference or cell reference. Consult Excel help on how to name a cell. Additional MID Function ExamplesThe worksheet seen below contains some typical worksheet formulas that run the MID worksheet function. Pay close attention to the argument list and the syntax used to write the formula.
Things to Know About the MID Function

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