Client: Too many of our business processes take place on excel and paper! We need to modernize our business processes. Build an app that can do the main things we do with excel and paper in app form.

Dev (4 months later): Here it is

Client: Ok some of our users want to still use excel and paper so build the ability to print the app and export/import to excel so they can continue working the way they always have alongside our new app.

Dev: …