Working with multiple Excel files often creates unnecessary complexity, especially when you need to analyze or consolidate data for reporting, financial management, or decision-making processes. Instead of switching between different workbooks, a more productive approach is to combine them into a single unified file. Merging Excel files in C# can be done efficiently with the help of Conholdate.Total for .NET, which provides a powerful and reliable SDK for handling Excel operations programmatically. This approach saves time, reduces manual errors, and ensures your data remains consistent across all records.

By using the Conholdate.Total for .NET SDK, developers can easily merge two or more Excel workbooks into one consolidated file without compromising data integrity. The SDK simplifies complex Excel-related tasks by offering methods to combine worksheets, manage charts, handle images, and maintain formatting during the merge process. This eliminates the need for manual copy-pasting and guarantees that your data remains structured and accurate across merged files.

Why Merge Excel Files in C#?

  • Many organizations need consolidated files to streamline data management and access from a single source.

  • Combining multiple workbooks improves collaboration among teams, preventing errors caused by scattered files.

  • Automated merging reduces time spent on manual copy-pasting, particularly with large or repetitive datasets.

  • Using C# code ensures accuracy and consistency while avoiding the human errors that occur during manual processes.

  • Reports and dashboards become easier to generate when all related data is stored in a single workbook.

  • Merging supports scalability, allowing smooth handling of hundreds of workbooks in enterprise workflows.

Merge Excel Files in C#

The sample code below shows how to merge Excel files in C#:

// Open the first XLSX file.
Workbook xlsxFile1 = new Workbook("charts.xlsx");

// Open the second XLSX file.
Workbook xlsxFile2 = new Workbook("picture.xlsx");

// Combining the two workbooks
xlsxFile1.Combine(xlsxFile2);

// Save the target book file.
xlsxFile1.Save("combined.xlsx");

This code snippet demonstrates how to merge two Excel files into one. The Combine method enables developers to consolidate the contents of multiple workbooks into a single file, while the Save function ensures that the final output is stored as a unified document ready for reporting or sharing.

Conclusion

Merging Excel files in C# is an essential feature for professionals who need to simplify workflows and enhance productivity. With the Conholdate.Total for .NET SDK, the process becomes reliable, efficient, and seamless, allowing you to merge workbooks without losing formatting, charts, or images. This solution eliminates repetitive manual steps, ensures accuracy, and makes it easier to work with consolidated data. Whether for small projects or enterprise-level systems, integrating Excel merging into your C# applications helps achieve better collaboration, streamlined operations, and time savings.

See Also