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Xavier Fok

Digital marketer and data analyst with 15+ years in advertising, content, and growth. Founder of DataResearchTools, based in Singapore. I write about AI tools, automation, and productivity for solopreneurs building real businesses without a team.

Excel Solver for Business Problems: Complete Guide (2026)

May 12, 2026May 9, 2026 by Xavier Fok

Master Excel Solver with this tutorial. Set up constraints, run optimizations, and solve real business problems like product mix, scheduling, and budget allocation.

Categories Excel & Sheets Power Skills

Excel Power Pivot Tutorial: Multi-Table Analysis (2026)

May 12, 2026May 9, 2026 by Xavier Fok

Learn Excel Power Pivot from scratch. Build relationships, write DAX measures, and analyze millions of rows across multiple tables without ever using VLOOKUP again.

Categories Excel & Sheets Power Skills

Excel XLOOKUP Complete Guide for Beginners (2026)

May 12, 2026May 9, 2026 by Xavier Fok

Master Excel XLOOKUP with this beginner-friendly tutorial. Step-by-step examples, syntax breakdowns, error handling, and the patterns that finally retire VLOOKUP.

Categories Excel & Sheets Power Skills

Excel INDEX/MATCH Tutorial: Better Than VLOOKUP in 2026

May 9, 2026 by Xavier Fok

Learn Excel INDEX/MATCH the right way. Step-by-step tutorial with sales examples, syntax, error fixes, and the 5 reasons it beats VLOOKUP for real analysis work.

Categories Excel & Sheets Power Skills

AI Podcast Transcription and Analysis Tools 2026

May 8, 2026 by Xavier Fok

AI podcast transcription tools 2026. Descript, Riverside, Otter, Whisper, and Castmagic compared for transcript accuracy, show notes, and content repurposing.

Categories AI Tools

AI Meeting Notes Tools: Otter, Fireflies, Granola Compared

May 8, 2026 by Xavier Fok

AI meeting notes tools 2026 honest comparison. Otter, Fireflies, Granola, Fathom, and Tactiq tested for transcription accuracy, summary quality, and privacy.

Categories AI Tools

AI Time Tracking Tools 2026: Honest Comparison

May 8, 2026 by Xavier Fok

AI time tracking tools 2026 honest comparison. Timely, RescueTime, Reclaim, Memory AI, Toggl, and Harvest tested for accuracy, privacy, and freelance billing.

Categories AI Tools

AI for Expense Tracking and Categorization 2026

May 8, 2026 by Xavier Fok

AI for expense tracking 2026. The exact ChatGPT and Claude workflow that turns bank statements and receipts into clean categorized expenses ready for tax filing.

Categories AI Tools

AI for Invoice Processing: Tools That Save Hours

May 8, 2026 by Xavier Fok

AI for invoice processing in 2026. The exact ChatGPT, Claude, and dedicated tool workflow that turns PDF invoice piles into clean accounting data in minutes.

Categories AI Tools

AI for Resume Parsing and Hiring Analytics 2026

May 8, 2026 by Xavier Fok

AI for resume parsing and hiring analytics 2026. The exact ChatGPT and Claude workflow that turns 200 resumes into a ranked, structured shortlist in two hours.

Categories AI Tools
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