udemy-dl - Download courses from Udemy for personal offline use

Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.

Podia - Podia is your all-in-one digital storefront. The easiest way to sell online courses, memberships and downloads, no technical skills required. Try it free!

Google Sheets - Synchronizing, online-based word processor, part of Google Drive.

Skills Co - Buy “Skills” from Pros. Learn any skill on-demand with expert video courses. Got Skills? Learn How To Get Paid with YouTube + Google. Free iOS + Android App

Apple Numbers - Numbers lets you build beautiful spreadsheets on a Mac, iPad, or iPhone — or on a PC using iWork for iCloud. And it’s compatible with Apple Pencil.