Excel Merger: Consolidate Worksheets and Sheets Client-side

The Excel File Merger from LegitEBusiness is a secure client-side utility developed to merge multiple spreadsheets into a single consolidated output file. Depending on your workflow requirements, you can choose between two merge processes: keep workbooks as individual tabs inside a single master workbook, or stack tabular matching columns into a unified data sheet.

Because the merging script relies on SheetJS libraries executing entirely on the client, **none of your uploads are processed on external servers**. This protects your company's sales ledger records, payroll sheets, and balance sheets from data leaks.