Local XLSX tools
Split Excel workbook data
Split selected XLSX sheet data into separate workbooks or row-count chunks locally. Preview output files before downloading.
Split workbook data
Creates new values-only XLSX files from stored cell values. Formulas become their stored results; formulas, formatting and charts are not preserved. Original files remain unchanged. Edit source opens the original workbook.
50 MiB combined input · 100,000 selected cells · up to 100 output files
Keep your original workbook
Selected files stay on your device. The source editor retains the original XLSX package and supported changes. Data exports use stored cell results and do not preserve workbook formulas or formatting; editing and calculation remain separate actions.
Use Edit source to keep working with the same workbook. Complex formulas and unsupported source features report their limits. Encrypted workbooks are not supported.