Question

why do we need to be accurate data for excel?​

Answer 1

Answer:

Accuracy is important in everything, isn't it? OK, perhaps more so when creating a spreadsheet, because we tend to copy a formula from one cell to an entire row or column, then to multiple tabs and link multiple sheets and multiple workbooks. At least, that is what I do. And, I have found that you spend a lot of time re-doing work when you do not test the accuracy as you go.