Microsoft® Excel® Spreadsheet Merging Solution

Combine multiple Excel and OpenOffice™ files as separate spreadsheets with free cross-platform Apps and APIs

Free Online App for Excel Merging

Combine XLS, XLSX, XLSB, XLT, XLTX, XLTM, XLSM and ODS files to a single spreadsheet

High Code APIs to Combine Spreadsheet Data

Native APIs to combine Excel & OpenOffice spreadsheets using .NET Core, Xamarin, Java, C++, Android, Node.js, PHP & Python