midA function is a function in Microsoft Excel that is used to extract substrings from text strings. It accepts three parameters: a text string, a start position, and the number of characters to be extracted. Here is a detailed description of these three parameters:
Text string: This is the raw text from which you want to extract the substring. This can be a cell reference or a text string that is directly entered.
Start Position (Start Num).: This is where you want to start extracting the substring. It must be a positive integer, indicating which character in the text string to start with. For example, if you want to start with the 3rd character, start at 3. Note that this position is based on 1, not 0.
Number of characters (num chars).: This is the number of characters you want to extract from the text string. This can also be a positive integer. For example, if you want to extract 5 characters, the number of characters is 5. If you omit this parameter, or if it's greater than the length of the text string minus the start position,midThe function will extract all characters from the beginning position to the end of the text string.
Here's onemidAn example of a function, let's say we have a text that contains"helloworld"of cell A1, and we want to extract 5 characters starting with the 7th character:
=mid(a1, 7, 5)This will return"world", because"world"is from"helloworld"A 5-character substring starting with the 7th character.