New Post: PHPExcel Buffer Advice

I need PHPExcel to import data from a spreadsheet - no problem so far - but I need to ask the user to identify each column before uploading fully.

Is the best way to do this by creating my own buffer in my database and then sorting the data from there or is there a way of passing the raw data from page to page before adding to my database? Also, would this be very memory intensive?

Any help would be great.