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Big Data
3 tutorials grouped around Big Data, so readers can continue by topic.
advanced
CSV Batch Deduplication: Big Data & Cross-Platform
Learn how to batch process multiple CSV files and handle encoding, delimiters, leading zeros, and other common issues. Includes Python script examples for larger workflows.
12 min readAug 18, 2025
troubleshooting
Why Excel's Built-in "Remove Duplicates" Isn't Enough? (3 Better Solutions)
5 major limitations of Excel's built-in deduplication feature: no cross-sheet support, no retention rules, no fuzzy matching, no duplicate details, crashes on big data. Provides three more stable solutions: SheetCleaner, Power Query, and Excel 365 formulas.
12 min readAug 18, 2025
advanced
Excel Large-File Deduplication Without Crashing: Performance Optimization & Crash Prevention Guide
Professional guide for Excel big data processing: 64-bit environment setup, CSV optimization, batch processing strategies. Reduce large-file freezing, memory pressure, and program crashes with SheetCleaner, Power Query, and Python scripts.
15 min readAug 18, 2025