检查一列以查看其是否包含另一列中的值，并突出显示重复项

Question

I need a formula to highlight all rows in a column if the value exists in another column. So if I have Column A and it has 100 rows 20 of them just have the word cat, 20 dog, 20 bird and 40 lizard. and in Column BI only have 1 row that says cat and one row that says bird I need all the cat and bird rows in column A highlighted. I have been looking for something like this for a while now and can not find it anywhere.

Answer 1

Try this:

1. Select all cells to be formatted
2. Create new conditional formatting rule
3. Select the last option Use a formula to determine which cells to format
4. In the formula box enter this: =VLOOKUP(A1,B:B,1,FALSE)=A1
5. Click Format button and choose the color you want
6. Click OK

This is what it should look like when you are done.