301 Redirects Migration file from CRE Loaded Os commerce site to 3dcart store

Hello, I have an existing live CRE Loaded (Os commerce based) site with about 2700 product pages that I need to created a properly formatted CSV file for a 3dcart store so that I can maintain pre-existing SEO rankings/links over to the new migrated store. Example CSV file is attached. I will provide files from CRE loaded store and 3dcart store with each sites URLS for integration into properly formatted new 301 redirect CSV file.