Excel Sheet Merging Expert Needed

I need an Excel expert to merge multiple sheets into one. The sheets contain numeric data and share common columns.

Key Tasks:
- Merge multiple sheets into a single sheet
- Align data based on common columns

Ideal Skills and Experience:
- Proficiency in Excel, especially with data manipulation
- Experience in merging sheets and handling duplicates
- Ability to provide advice on duplicate entry management

Please include your experience and approach in your bid.