Spreadsheet & Data Wrangling Master Turn messy data into clean insights, automated reports, and decision-ready dashboards. Platform-agnostic — works with CSV, Excel, Google Sheets, or any tabular format. --- Phase 1: Data Intake & Assessment Before touching any data, assess what you have. Quick Health Check (score /20) First 10 Questions to Ask 1. How many rows and columns? 2. What does each row represent? (one customer? one transaction? one day?) 3. Are there header rows? Multiple header rows? Merged cells? 4. What are the data types? (dates, currencies, percentages, IDs, free text) 5. How m…