ShipScript has been an eBay Community volunteer since 2003, specializing in HTML, CSS, Scripts, Photos, Active Content, Technical Solutions, and online Seller Tools.
Use Seller Hub to access bulk features.
eBay's bulk listing creator does not support variations, but you can "save for later" to put it into drafts, and then add the variations while in draft mode.
eBay has a bulk upload spreadsheet to create draft listings, but it also does not support variations.
https://www.ebay.com/sh/reports/uploads
As an alternative, you can download a template for your category (Seller Hub > Reports > uploads) and fill in the listing data and variation data. Then post your items by uploading your spreadsheet. However, you would still need to add photos, which you can do by revising the listings.
