⚠️ Top 3 Excel & Power BI Mistakes (And How to Fix Them) Excel and Power BI are powerful tools — but even experienced users can make simple mistakes that impact dashboard accuracy and performance. Let’s fix the most common ones and build smarter, cleaner dashboards 👇 ❌ Mistake #1: Hardcoding Data 📉 Manual data entries or fixed references lead to errors and frequent updates. ✅ How to Fix: Use Excel Tables or Power BI Queries for live data connections Use named ranges and dynamic formulas (e.g., INDEX/MATCH , XLOOKUP ) ❌ Mistake #2: Ignoring Data Cleaning 🧹 Messy data ruins even the best dashboards. Garbage in = Garbage out. ✅ How to Fix: Use Power Query to clean, filter, and transform data Apply Data Validation in Excel for dropdowns and clean inputs ❌ Mistake #3: Too Many Visuals 📊 Overloading your dashboard makes it harder to understand and slower to load. ✅ How to Fix: Stick to 3–5 key metrics per dashboard Use slicers or filters...