What can you do using MS-EXCEL?

Literally You can use MS-EXCEL for anything...

* Worksheet
* Word processing
* Presentation
* Front End Tool for popular RDBMS
....

and You too can add one more item to this list...

Here is the list for Advanced / Specialised applications

* Business Intelligence Tool
* What-If Analysis Tool
* Real Time Calculations for Production Specialists
* Statistical Analysis Tool
* Charting Tool

and more.