Excel Database Merge for Analysis

I need two Excel databases merged for analysis and comparison. The primary focus is on customer information, specifically year-over-year changes.

Requirements:
- Merge two Excel databases
- Analyze and compare customer info
- Focus on year-over-year changes

Ideal Skills and Experience:
- Proficiency in Excel
- Experience with data merging and analysis
- Attention to detail
- Ability to deliver accurate, organized results