Data Massaging for Uploading to Shopify

Hello freelancers into data entry. I have a project that involves basically data massaging, or making existing data more useful for my purposes. I have a .CSV, of which I need to change some of the file data so it uploads correctly into my Shopify page. If you have never heard of Shopify, it is an e-commerce platform. So what is happening is that I need to change the names of several products, so they can appear as variants (of the same thing), currently most of them are stand alone (which is not what I want). The products are camping and fishing in nature and it would be good if you had some background knowledge in these areas, so you can understand what you are doing. Anyways, so the .CSV has many fields, of which in particular I need to change a few to upload correctly. They are as follows: Column A (the handle) - For variants to be reflected correctly, the handle needs to be exactly the same. At the moment, this will need to change. Eg. Berkley-HVMCF4-GP-HVC-CRWFATTY-4IN and Berkley-HVMCF4-GPB-HVC-CRWFATTY-4IN are actually the same thing, just 2 different colours, you will need to change both (and other related products ) to Berkley-Craw-Fatty-4-inches. Column B(title) - For this, like column A, all products need to share the same title (variants). So in example above, the title will be Berkley Craw Fatty 4 inches *Sometimes the title (and handle) are not human friendly, you will either need to pull out the info from the body (below) or search it on google Column C (Body (html)) - So for this, all products will share a single Body type, the first in the variant will have it and the rest will be blank. As this is where all the variants share the information, it needs to take relevant data (where relevant) from each variant and display it there. So in example, there is no relevant data (just different colours). But say if we are taking about a Jacket, you may need to specify what Medium means (lenght, waist, etc). Or if we are talking about a fishing line, you will need to mention what diameter, length (if different) and poundage a certain line is. Does not need to be complicated, just use the <br /> line to seperate each variant. *this part needs some brain power Column H and I (Option1 Name and Option1 Value) - This you just need to check and if it is not the default values, then it will be something else. Eg. for colours above, the Option1 Name is Colour and Option1 Value is "Black Blue" and "Black Red". As mentioned, they are mostly recorded, so this is just to check. Thats it about it, so in total, you will need to modify appx 8200 products with modifications as above. Looking for freelancer who can complete this work at lowest cost.