Sample XLSX Generator
A header row plus fictional fixture rows — id, name, email, status, and score (1–50 rows).
The workbook is built and downloaded entirely in your browser with the Web Crypto API — nothing is uploaded. It is a real, openable Excel file: a store-only ZIP of the OOXML parts Excel, Google Sheets, and LibreOffice Calc expect.
Dummy Excel spreadsheets for testing
Generate a real, openable sample XLSX with a chosen number of rows without hunting for a file to download. Use it to exercise upload flows and file-size validation, probe storage and quota limits, or hand a spreadsheet or Office parser a fixture. Every workbook carries a header row plus clearly-fictional fixture rows, so it is always safe to share.
Pick anywhere from 1 to 50 data rows. Turn on “Pad to an exact file size” to hit a precise byte count from 1 KB up to 50 MB — the extra bytes are tucked inside the ZIP container, which readers ignore, so the workbook stays valid and openable.