Excel Automation for Sales Data

I need an Excel expert to create macros that will help manage and automate my sales data.

Key tasks include:
- Generate and massage data from daily summaries by salesperson
- Total sales
- Commission calculations
- Sales summaries by date
- Track daily sales not yet paid for by customers

Output should be in an Excel spreadsheet.

Ideal skills and experience:
- Proficiency in Excel and macro creation
- Experience with sales data management
- Strong analytical skills
- Attention to detail