WooCommerce Bulk Pricing Variants

I need to add pricing variants to about 1,000 products in my WooCommerce online store. Each product requires the same eight pricing variants:

PDF Pattern only $15
PDF Pattern only (Customized) $25
14-count stamped kit $75
16-count stamped kit $75
18-count stamped kit $75
14-count customized kit $115
16-count customized kit $115
18-count customized kit $115

Attached are two images: the one of the elephants is a current inventory item on my website with only one pricing option of $15. The second image (of the Angus) is from a competitor's website and better illustrates what I need to have for each of my inventory items.

Requirements:
- Add pricing variants for all 1,000 products
- Pricing variants based on specific attributes (size, color, material)

Ideal Skills:
- Experience with WooCommerce
- Familiarity with bulk editing tools
- Attention to detail and accuracy