In the workplace, people like using MS Excel because the alternatives are ridiculously inferior
Excel is frequently used as a database, not because it makes a good database but because people don't understand how to use Access (or any other relational database) but Excel is easy enough that they can get something usable.
Excel clones simply don't cover the breadth of functionality provided by the OG, not to mention key UX features like countless hotkeys and menu accelerators
Every Excel user understands Google Sheets. They just don't like feeling like they're strapped to a wheelchair
Office Standard and Home & Business SKUs are without it, you need Office Professional Plus. Because it costs few hundred more for just Access and Skype, most workers will get the Standard one.