CSV vs XLSX vs JSON vs TSV: Choosing the Right Format for Data Analysis
By ParseBase Team | Feb 28, 2026 | 6 min read
Each file format has different strengths for analytics. Here's a practical breakdown of CSV, XLSX, TSV, and JSON, plus how ParseBase handles all four seamlessly.
Why Format Choice Matters
Your file format determines how portable your data is, how fast it processes, and whether you'll run into compatibility issues. ParseBase natively supports CSV, TSV, XLSX, and JSON.
CSV (Comma-Separated Values)
Ideal for universal data exchange and large datasets. Simple, lightweight, and universally readable. ParseBase auto-detects delimiter style, encoding, and column types.
XLSX (Microsoft Excel)
Ideal for business reporting and multi-sheet workbooks. Preserves data types. Upload XLSX files directly to ParseBase without any CSV conversion step.
JSON (JavaScript Object Notation)
Ideal for API responses and nested data structures. ParseBase automatically flattens nested JSON into a tabular structure for immediate analysis.
TSV (Tab-Separated Values)
Functionally identical to CSV but uses tab characters, avoiding the common problem of commas inside data values.
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