Subset is a modern spreadsheet focused on ease of use, reusability, and collaboration. Spreadsheets have not changed in over 40 years and while incredibly horizontal (can be used for almost any scenario) they have tremendous drawbacks. Learning to be proficient in Excel or Google sheets is a technical hurdle similar to learning how to program. Most complex spreadsheets today can not be shared and reused by someone without a lot of time invested in auditing the file. A modern spreadsheet should be easy to learn and allows you to reuse analysis others before you have created.