XLSX File Generator
Generate dummy XLSX files instantly for testing. Create sample Excel spreadsheets that open in Excel, Google Sheets, and Numbers. 100% free.
Generate XLSX File
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Files are generated on the server
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Features
- Opens in Excel, Google Sheets, and Numbers
- Real spreadsheet rows and columns
- Custom file sizes from 10KB to 20MB
- No registration required
- Realistic, technical, or lorem data
Use Cases
- Test spreadsheet upload endpoints
- Verify Excel import size limits
- Benchmark spreadsheet parsing libraries
- QA data import and ETL workflows
- Test file size validation rules
Frequently Asked Questions
- Do these files really open in Excel?
- Yes. They are genuine OOXML workbooks with a proper worksheet, header row, and typed cells, so Excel, Google Sheets, LibreOffice, and Numbers all open them normally.
- What data do the spreadsheets contain?
- A header row followed by data rows. Depending on the content type you choose, that is people and company records, server request logs, or lorem ipsum text.
- Can I use these to test uploads?
- Yes. Because the size is exact to the byte, they are well suited to testing upload limits and validation rules around spreadsheet imports.