The difference between Excel and Excel online is that Excel is a desktop app installed on your computer. The Excel Online is an application which is not installed on your computer but for working with Excel Online you will need an active internet connection and web browser (Mozzila, Chrome etc..).
The pros for Excel online:
- Your Excel files are stored online you can access anywhere with internet connection no extra uploading files is needed
- Excel online is cheaper
- no need to install to the computer you only need a web browser for using Excel Online
- you can basically use Excel online anywhere on any device which is connected to the internet
The cons for Excel online:
- for working with Excel online is recommended-necessary to have an active internet connection.