An inventory manager might send someone an excel sheet of inventory that is missing and needs to be located. Or an asset list that needs to be completed.
Serious companies (even small ones) have some web-based (or sometimes desktop) system with an actual database for this stuff. We stopped keeping company inventory and such as floating files years ago.
An accountant uses Excel in all kinds of ways, and those documents need to be disseminated to management.
Accuontants use accounting software. Even more so in corporate environments.
What do you think your companies policy manuals were written in? The ISO quality manual? Material Safety Data Sheets? The log sheet to record when the bathrooms were cleaned? Device Master Records? Customs declarations paperwork? Grant applications? Investment Prospectus? Meeting minutes? New Employee Orientation packages? Legal Contracts? Stock Option Grants? SEC Filings? Press Releases? Performance Reviews?
How many of us need to fill out an excel or word document to submit a timesheet, prepare a customer a quote, submit an expense report, request vacation time, fill out an order, prepare a project budget, estimate a job?
I have only used it to create my resume.
Yeah, not everybody is you.
Once every few years, maybe? That's far from being standard. Using a browser is way more standard (I've used one for most of the points you mention above).