I need windows application which has 2 function:
Remove raw from input file 1 where email addres in raw in file 1 exist in file 2.
Input file 1: csv file with record separate by comma. One of data is email address.
Input file 2: each line has 1 email address
Output file: csv file from input file 1 with removed raws. Raw should be remove if email address from this raw is found in file 2
In other word I want to remove my unsubscribers I have in file 2 from file 1.
Merge and de-duplicate 2 fiels with email addresses. Each file has 1 email addres in each row.
I want to merge and de-duplicate two unsubscribers files into 1 which I can then use with function 1