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Practical guides on formulas, data cleaning, CSV files, and automation — written for real spreadsheets, not toy examples.

Excel Formulas Data Cleaning CSV Processing Excel Automation VBA and Macros AI for Excel
AI for Excel · July 16, 2026 · 3 min read What Can AI Actually Do Inside Excel? A Realistic Walkthrough Past the hype: what an AI assistant embedded in Excel really does — reading your workbook, cleaning data, writing formulas back, building reports — and the guardrails that make it trustworthy. Data Cleaning · July 13, 2026 · 3 min read How to Find and Remove Duplicates in Excel — Safely Excel's Remove Duplicates button is fast, irreversible, and keeps rows you didn't choose. Here's how to count, review, and then remove duplicates — with formulas or one AI instruction. VBA and Macros · July 10, 2026 · 3 min read VBA Macros vs. AI Add-ins: Which Should You Use to Automate Excel? An honest comparison of VBA macros and AI Excel add-ins: setup cost, maintenance, safety, and where each approach genuinely wins. Includes a decision checklist. Excel Automation · July 7, 2026 · 3 min read Excel Automation Without Macros: 7 Repetitive Tasks You Can Delegate to AI You don't need VBA to automate weekly report cleanup, formula filling, categorization, and summaries. Seven concrete Excel tasks you can hand to an AI sidebar assistant — and what to check afterward. CSV Processing · July 4, 2026 · 3 min read How to Open CSV Files in Excel Without Breaking Dates, Leading Zeros, or Encoding Stop Excel from eating leading zeros, mangling dates, and garbling UTF-8 when you open CSV files. The import workflow that preserves your data, plus AI-assisted cleanup for damaged imports. Excel Formulas · July 1, 2026 · 3 min read IFERROR + XLOOKUP: Building Error-Proof Excel Formulas When to use IFERROR, IFNA, and XLOOKUP's if_not_found argument — and when hiding errors is exactly the wrong move. Practical patterns for formulas that fail loudly only when they should. Data Cleaning · June 28, 2026 · 3 min read How to Find and Fill Missing Values in Excel (Without Guessing) Locate blank cells fast, decide whether to fill, flag, or leave them, and use formulas or AI to complete missing data in Excel — with an audit trail of what changed. Excel Formulas · June 25, 2026 · 4 min read Write Excel Formulas in Plain English: How AI Formula Generation Actually Works Describe what you want in a sentence and get a working, checkable Excel formula written into your sheet. What AI formula generation does well, where it fails, and how to verify the output. Data Cleaning · June 22, 2026 · 4 min read How to Clean Messy Excel Data: A Practical 8-Step Checklist A repeatable checklist for cleaning real-world Excel data — trailing spaces, mixed date formats, duplicates, and broken formulas — plus how to do the whole thing with one AI instruction.