Compare 2 Excel files and copy missing records.

I have two excel files. File one contains fields: [login to view URL], [login to view URL], full name, email address and optbad. File two contains fields [login to view URL], [login to view URL], email address, acc.date. I need to search file 2 for records that do not exist in file one. When you find a missing record, I would like it copied to file one. Since there is a chance of a mispelled name or email address I would like the missing records copied to file one to be identified. Maybe just add a field to the record that says copied? Ideally, I would prefer someone to provide a macro, or other solution so that I wouldn't have to provide the files. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform .xls excel file.