For me - data entry. Form-based software takes too long to fill out. With a spreadsheet, I can import csv files or copy and paste data easily. Developers often

For me - data entry. Form-based software takes too long to fill out. With a spreadsheet, I can import csv files or copy and paste data easily. Developers often talk about Excel being misused as a database, and I think the root cause is the same - spreadsheets provide a very friendly user interface for adding and editing data.