Inventory Management Excel App

I'm looking for an Excel application to streamline my inventory management with an integrated order management system.

Essential Features:
- Inventory management with order management capabilities
- Order tracking functionality
- Comprehensive customer database

Ideal Skills and Experience:
- Advanced proficiency in Excel
- Experience in developing inventory management systems
- Strong understanding of order management processes
- Ability to create user-friendly interfaces within Excel

Please provide samples of similar work done.