Some of what we do in Excel should not be in Excel at all. Registers, lists, case tracking, records – this is database data, not calculation data. Excel is a bad tool here because it does not support many users at once, has no input validation, no change history.
Microsoft Lists (included in M365, in Teams as an app) is a lightweight database that replaces such sheets. Looks like Excel, but works like a database. Many people edit at once, every change saved, you can add a form for users, validation, automations.
When we migrate from Excel to Lists. First: a register (vendors, equipment, projects, clients) used by 3+ people. Second: records (leave, travel, expenses) needing validation. Third: any list with 50+ rows edited by more than one person.
Lists do not replace Excel for calculations, financial models, ad-hoc analyses. They are an alternative only for registers. That is a huge part of typical Excel use in companies – and the area where automation by migration delivers immediate impact.