I need a program that checks posts in 2 excel files.
I have one excel file with several posts with thousands of phone numbers. The program will open that file and compare these numbers to the numbers in file2.
If the numbers in file1 is found in file2 these numbers should be saved in an text document, or these post in file2 with the same numbers as in file1 should be marked in red (if this is possible to do).
So the interface needs two "file choosing controls" where I select the files to compare and a button that says “compare??.