Hi,
I am experienced & expert in product adding, I've done this before for many sites in different technologies & currently working. If the data is collected well in excel, it will take 2-4 days approx, I can help you to get this done ASAP. Can we discuss further to set timeline & start the work.
I'm 10+ year experience in Web designing & development with expert knowledge in online ecommerce store design & development, I have worked on Wordpress, magento, opencart, Volusion, bigcommerce,3d Cart, Shopify stores which includes design, development, as well as product management.
Thanks,
Vinod