Excel CSV file- make my Wix template work, transfer shop data

I need to move all my shop content from Etsy to Wix Online shop. I have a CSV file in Excel with all the information already embedded but Wix has its own template for that, and it's showing every item has error: 2 fields missing :
Required field - handleId is missing
fieldType: Must be either "Product" or "Variant"
I need someone to transfer content from Excel sheet ( this was prepared for another shop, so it's done, just needs to be copied in proper place in Excel template sheet) to the Wix template, so Wix website will accept this CSV file. We will probably have to fix those missing 2 fields, I will provide this info for every product. There is 45 products to go. I need someone who knows what he is doing to modify existing CSV file to corresponded with the Wix CSV template. If you know, what I'm talking about I'd like to hear from you!