Hi there, I am the freelancer you are looking for coz what you need is what i do daily and currently I'm making excel sheets for a new cosmetic brand in UAE and inserting all the data for it ( product name , description,capacity,code,color,version,price,discount,made in,quantity......etc ) and I'm doing it perfectly as the company says as I'm an very focused organized person and i have a 13 years experience in data entry and more than 7 years doing that product organizing listing work .. And don't worry about the three days that i wrote coz it totally depend on your products and i haven't seen it yet so it might take only 1 day from me or more all i know is that you will get your listings perfectly accurate,organized and fast. So i will be more than glad to help you if you contact me so we can discuss anymore details your want before we start.
Thanks & Regards