50 Best Excel Formulas with Examples: Beginner to Advanced 2026

Learn 50 essential Excel formulas with clear examples and copy-ready syntax — from SUM and IF to VLOOKUP, XLOOKUP, and UNIQUE. 2026 guide.
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50 Most Useful Excel Formulas with Examples – 2026 Guide
50 Most Useful Excel Formulas with Examples (Beginner to Advanced) – 2026 Guide
Excel formulas look intimidating until you see them broken down one at a time. This guide walks through 50 of the most useful Excel formulas — from everyday basics like SUM and IF to modern lookup and array functions like XLOOKUP and UNIQUE. Every formula includes a plain-English explanation, a working example on a mini spreadsheet, and a one-tap Copy button so you can paste it straight into your own sheet.
Use the table of contents below to jump to any formula, or scroll through the whole guide from beginner to advanced.
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50 Best Excel Formulas with Examples: Beginner to Advanced 2026

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