Hi,
I offer you a better solution. I can import all your data into a back end MySQL database and can give a small PHP utility that will allow you to list the data off the database in any column order (L, J or ZIP) you want, as well as bulk deleting. This will also serve your encryption purpose as the data will reside in a professional database, not in some clear text flat file. This will also make the data more organized. You will also be able to import any new data file at any time.
The application will be a PHP/MySQL solution and can be hosted on your own PC locally that will make the data transfer fastest (however, you can also put it on the web if you want to access the data over the internet from anywhere). In order to do this, I need some of the sample data files. I hope you like my idea.
Regards,
Joy