Excel Interview Prep: Must-Know Questions & Skills

Excel skills are a major advantage for any Data Analyst interview, and knowing what to expect can help you shine. Top employers—including the Big 4—love to ask about practical scenarios, essential formulas, and tools for real-world data work.

  • Importing and consolidating data: Use Power Query or manual methods to combine information from multiple sources, ensuring your data is clean and standardized.
  • Data validation: Set up rules (like drop-downs and constraints) to ensure data is entered accurately and consistently.
  • Pivot Tables: Be ready to summarize, filter, and visualize large datasets—explain how you use pivot tables to spot trends and create dashboards that drive decisions.
  • Conditional formatting: Show how you highlight key trends, outliers, or errors visually with basic and custom rules.
  • Top formulas: VLOOKUP, XLOOKUP, SUMIF, COUNTIF, IF, INDEX-MATCH, and advanced array formulas—be prepared to write and explain them in business scenarios, not just syntax.
  • Analysis ToolPak usage: Discuss your experience running regressions, descriptive stats, or “what-if” modeling with this built-in Excel add-in.
  • Duplicates and unique values: Know methods for identifying and cleaning duplicates, and producing lists of unique records.
  • Protection and reporting: Describe using password protection, hiding formulas, and documenting your work for audits or team handoffs.

Want a full, recruiter-friendly cheat sheet with sample questions, answers, and function demos?
Check out this curated resource:
Excel Interview Questions for Data Analyst Roles (Google Doc)

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