You can also search using a vlookup formula which will be faster than finding every value and interacting with both sheets.
Add this formula in the cell in column B against which you want to evaluate the value
=VLOOKUP(A2,Sheet1!$B$2:$C$7,2,FALSE)
The parts you need to change are:
- Instead of A2 if you are searching for value of cell A3 then write A3 in the formula while using "Write to Excel".
- Secondly, I have used B$2:$C$7 because my data is in this range on Sheet1. So change accordingly as per your data. This has to be done only once.

You could also copy/paste the formula to all the cells in the column B all at once, but I see that you do not want to search for particular cells that are not in green.