Stock and Options Trading system through excel sheet with real time data -- 2

I am looking to build a stock and options trading system through an excel sheet with real-time data. I am open to suggestions for specific requirements or features to include in the trading system.

Ideal Skills and Experience:
- Proficiency in Excel and VBA programming
- Knowledge of stock and options trading strategies
- Experience in integrating real-time data into excel sheets
- Strong understanding of financial markets and trading principles