I have a similar experience with providing users with excel files, but would also like to add that in a lot of business, the number 1 competition for a web application is the good old excel file (or its modern cloud version), and it's sometimes a challenge to beat.
I really hate how much work happens out of Excel/Google Sheets, but there's no denying that spreadsheets do a lot of heavy lifting without having to fuss with putting a DB together. Especially nowadays when two people can simultaneously work in a spreadsheet.
