Consolidate Excel Data & Verify Emails

I have several customer lists scattered across different Excel workbooks. My priority is to merge every record into a single, reliable master sheet so I can finally trust the data. Accuracy comes first:... (Budget: ₹1500 - ₹12500 INR, Jobs: Data Analysis, Data Cleansing, Data Entry, Data Integration, Data Management, Data Processing, Excel, Excel Macros, Visual Basic, Web Search)