Excel Bill Categorization & Summary

I’m holding 125 detailed 2024 bills, each already in Excel. What I need is a tidy, analysis-ready workbook rather than a pile of mismatched sheets. Here’s the flow I have in mind. First, standardise column headers and data formats so every bill follows one structure... (Budget: ₹12500 - ₹37500 INR, Jobs: Data Analysis, Data Entry, Data Management, Data Processing, Data Visualization, Excel, Excel Macros, Microsoft 365, Visual Basic)