Sure, I can help you with that!

To set a formula to be equal to a value plus or minus 1, you can use the IF function along with the ABS function to check if the absolute difference between x and y is less than or equal to 1. Here's an example formula:

1. =IF(ABS(x-y)<=1, "Something", "Nothing")

In this formula, "x" and "y" are the cell references for the values you want to compare. The ABS function returns the absolute value of the difference between x and y, and the IF function checks if that value is less than or equal to 1. If it is, the formula returns "Something", otherwise it returns "Nothing".

You can replace "Something" and "Nothing" with any values or formulas you want to use.

I hope that helps! Let me know if you need any further assistance.