Sure, I can help you with that!

To return the character at position 7 in a string of text in Excel, you can use the MID function. Here's how:

1. Select the cell where you want to display the character at position 7.
2. Type the following formula:
   Formula:

   =MID(A1,7,1) 

   , where
   Formula:

   A1 

   is the cell containing the 15-character string of text.
3. Press Enter.

The MID function takes three arguments: the text string you want to extract from, the starting position of the characters you want to extract, and the number of characters you want to extract. In this case, we only want to extract one character, so we specify a length of 1.

The formula will return the character at position 7 in the string of text. If the string of text in cell A1 is "Hello World", for example, the formula will return the letter "W".

I hope that helps!