Products Upload on prestashop site

We need to upload about 2000 products to our website with Pictures, Prices, descriptions, etc.
Product Title
Products Pictures
Long Description & Short description
Category/Sub-categories
Add Variance
Tags/ keyword
Meta title/ description
Some of the products are already on the website but need to be updated. Mind you the pictures are image links from another website but no need for the images to be linked when loaded on our site. Please see samples
Thanks