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.
SheetCleaner Team
Official Tutorial
Continue Building Your Skills
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.
Professional guide for academic research and survey data cleaning: handle duplicate responses, cross-batch merging, organization name standardization, time window deduplication. Support privacy compliance, retention rule configuration, audit tracking, suitable for academic research, market research, user feedback and other scenarios.
Explore More Related Topics
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.
Learn how to deduplicate across multiple worksheets, supporting multi-column combinations and smart strategies for large files.
Find and correctly merge records that look different but are actually the same—covering case, whitespace, symbols, full/half-width, email aliases, phone country codes, approximate spelling, etc.
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.
