Welcome to the MrExcel board!
Your request should be doable but some more information would help determine the best method(s). For example..
1. What do the exports look like? Are they just single columns or multiple? If multiple do they have exactly the same headings in the same order. Could we see a few rows (say 10-15) from each export that show some matching data and some not matching? My signature block below has a link with suggestions to do that. (We need to be able to copy/paste your sample data to test with so just an image is no good for that)
2. Where are the exports? Are they both in the same Excel sheet? Are they in the same workbook but on different sheets? Are they in different workbooks?
3. What should the results look like after the check has been done? That is, how do you want the result(s) reported?
The more that you can tell/show us about what you have, where and what you want to achieve, the better.