You can make utilities for yourself where you can put all your calculations and worksheets. This will reduce repetitive work to a great extent and help you save time for some other productive and constructive work. Apart from them, there are a countless number of other ways to use spreadsheet such as planning your tax, investment, cash flows, managing phone numbers and contact details and the like.
Spreadsheets are perhaps the most used software program in the workplace. The history of the use of spreadsheet is very old. People use to keep information in tabular form at the time when personal computers were not even invented. It goes without saying that the electronic spreadsheets have given a well and truly new dimension to data keeping and analysis.