I recently was switching a online store from using osCommerce to Zen-Cart, and realized how nice it is to have the Easy Populate add-on. For those not familiar with the Easy Populate add-on, this allows you to download the product data from your online store into a CSV file. You can open the file in Excel or OpenOffice Calc, edit the spreadsheet (ie. products, quantities, and other attributes), and the re-upload the file. Easy Populate will update your online inventory with the data in the spreadsheet. The one caveat with Easy Populate has been adding custom fields to the export/import data. This has been discussed in the Zen-Cart Forum, but I wanted a better solution than always having to edit the code.