What is against to ?ZIP? your files? It is very efficient to send files to other people. If the other one does not have WINZIP or a similar program that person should get it as soon as possible. Excel, dBase an Access files will reduce enormously.
Several years ago I had to ZIP a lot of files manually each day in order to attach these to e-mails. For lay-people we did one extra move, i.e. converting the ZIP file to an .exe file. Sometimes we even added their unzip directory to the .exe file. The only thing they had to do was double clicking and everything went to the required directory.
Good luck.