Integrate Visual Price Levels with Excel

Develop an "indicator" to:

1. Import Data from Excel: Load a list of assets (stocks, cryptocurrencies) from an Excel file.

2. Visualize with Charts: Display asset prices in charts with price axes.

3. Define Price Levels: Add horizontal lines to represent specific price levels on the charts with name for each line.

4. Trigger Alerts: Receive notifications (sound, visual) when an asset's price reaches a defined level.