.csv
CSV
Comma-separated values for database import, parser benchmarks, delimiter detection, and tabular data pipelines.
View CSV samplesChoose a spreadsheet format for data parsing, grid viewing, upload validation, and ETL pipeline testing. Standard fixtures in CSV, XLSX, ODS, and legacy XLS formats.
Library
Structured tabular data files for parser benchmarking and viewer verification.
.csv
Comma-separated values for database import, parser benchmarks, delimiter detection, and tabular data pipelines.
View CSV samples.xlsx
Modern Microsoft Excel OpenXML workbooks with multi-sheet tabs, formatting, formulas, and large mock tables.
Coming soon
.ods
OpenDocument Spreadsheet format for open-source office suites, LibreOffice, Apache OpenOffice, and Python pipelines.
Coming soon
.xls
Legacy Microsoft Excel 97–2004 binary format (BIFF8) for backward compatibility and legacy importer tests.
Coming soon
Spreadsheet samples
Evaluate your spreadsheet parsers against real-world data shapes and edge cases.
Test comma, semicolon, tab, and pipe delimiters with clean UTF-8 encoding and multiline quoted strings.
Compare memory consumption and parsing throughput across fixtures ranging from 10 rows to 100,000+ records.
Validate schema parsing across integers, floating-point decimals, ISO 8601 timestamps, booleans, and localized currency.
Verify multi-tab workbook extraction, tab renaming, empty sheet handling, and formula calculation limits.
Testing software that ingests, parses, or renders tabular spreadsheets requires dependable test fixtures with predictable row counts, encoding standards, and column types. Whether you are validating a CSV file upload wizard, benchmarking a Node.js streaming parser against a 100,000-row XLSX file, or checking LibreOffice ODS import compatibility, our synthetic spreadsheet fixtures provide clean, PII-free data for your automated CI/CD and staging environments.