Are you an existing user of osCommerce? Let’s import it to PrestaShop
If you have been working with osCommerce, welcome to PrestaShop. Importing all your information is very easy. The first thing that you have to do it is to go to Modules, then scroll down to Importer osCommerce on the modules list and click on the Install button. Once you have this module installed, you will need to follow the same process as the one detailed before, but with the module Shop Importer.
When you have both modules installed and active, click on Configure link under Shop Importer. You will then see a drop-down menu. Select Importer osCommerce and click on Choose. Fill in all the fields and click on Import to start the process.