Excel Data Consolidation and Analysis

I have four Excel sheets containing employee attendance data for the entire year, with each sheet representing a quarter (three months). In each sheet, dates are listed in columns and employee names are listed in rows... (Budget: ₹600 - ₹1500 INR, Jobs: Business Analysis, Data Analysis, Data Entry, Data Governance, Data Management, Data Modeling, Data Processing, Data Scraping, Data Visualization, Excel)