Creloaded EPB/EPA upload

We have a creloaded site and have loaded one item for sale. We have used Easy populate to download the item and followed the format exactly to get all our other items onto the EPB or EPA upload but the file is uploading to a temporary file but not extracting into the database. We have the EPB file ready. This should really be a simple project for someone who knows epb and can help us upload the file to our site. We dont want to enter item by item.