🧠 Top Excel Tricks for Auditors 1. ✅ Data Validation to Catch Entry Errors Use Data Validation to restrict inputs (e.g., only dates, only account codes). 📌 Go to: Data → Data Validation → Set rules (e.g., list of allowed GL codes). 2. 🔍 Use Conditional Formatting to Spot Red Flags Highlight duplicate transactions, outliers, or unusual values visually. 📌 Go to: Home → Conditional Formatting → Rules like “Highlight Cell Rules” → “Duplicate Values” or “Greater Than” 3. 📊 Pivot Tables for Fast