Data Entry Project

I need product data to be copied into categories on my ecommerce website. I will provide a login and reference site to be used. There are approximately 13,000 products to be touched and copied to a product category. Some products may be copied to more than one category. I will provide step-by-step instructions on how this is to be done from the administration side of my site. You must have high attention to detail in order to complete this task correctly. You will be looking at an external website as a reference point to make the product category changes on my site.