Excel is used because it's understood by business types, not because it's the only thing available. They're comfortable with spreadsheets, it's no surprise that

Excel is used because it's understood by business types, not because it's the only thing available. They're comfortable with spreadsheets, it's no surprise that they'll try to solve any given problem they have with spreadsheets. You see the same thing in reverse, with programmers reaching for Python when Excel probably would've been a better choice. Everyone reaches for what's familiar.