Amazon US Launch Spreadsheet Assistance

I'm looking for expert support to help me launch my product on Amazon US using a spreadsheet. My product is currently selling in Japan and has generated ASIN/SKU numbers. However, these numbers are not connecting on US Amazon. Customer support suggested that I apply the product via a spreadsheet to resolve my product stock issue.

Your tasks will include:
- Creating a suitable template for all my product details
- Guiding me on how to fill in the necessary product information
- Assisting with any validation and troubleshooting as needed

Ideal skills and experience:
- Prior experience with Amazon seller central and creating launch spreadsheets
- Familiarity with ASIN/SKU systems
- Excellent data organization and Excel skills
- Strong understanding of Amazon's requirements for product listing

If you've successfully assisted others in similar situations, please reach out.