Merge Excel Files

Excel Tools

Combine multiple XLSX or CSV files into one workbook.

Merge Excel Files

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Processed locally in browser memory · Never uploaded
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100% Client-Side · Private Local Processing

About Merge Excel Files

Combine multiple Excel workbooks (.xlsx, .xls) or CSV files into a single master workbook. Consolidate separate sheets or append matching tables cleanly in your browser.

View key capabilities & tips
Key capabilities:
  • Merges multiple workbooks into a single multi-sheet Excel file
  • Preserves original sheet names, table layouts, and cell data
  • Supports mixed workbook uploads with drag-and-drop file ordering
  • Client-side processing ensures proprietary financial data remains confidential
Tips:
  • Ensure sheet names across source workbooks are descriptive to easily identify merged tabs.
  • Check that column headers match across sheets if you plan to aggregate data later.
  • Open the merged master workbook in Excel to verify all sheets transferred successfully.

Merge Excel Files FAQ