Merge CSV Files Into One Excel Workbook
Bring multiple CSV files together as tabs in a single workbook
Sometimes the goal isn't just to combine CSV files into another CSV, but to bring them into a single Excel workbook where each source file becomes its own sheet, or where all the data lands together on one sheet. This is common when preparing a report that needs to move between different data sources but stay organized in one file.
Turbo Large Data Splitter can take a group of CSV files and write them into one Excel workbook, either as separate sheets named after the source files, or combined onto a single sheet if that better fits your needs. The output opens directly in Excel with no additional formatting steps required.
App Screenshots
How to Merge CSV Files Into an Excel Workbook
- Install Turbo Large Data Splitter on your Windows PC.
- Open the merge feature and select your CSV files.
- Choose whether each file becomes its own sheet or all data goes onto one sheet.
- Set the output as an Excel workbook (.xlsx).
- Click Merge to build the combined workbook.
- Open the resulting .xlsx file directly in Excel.
What Makes Turbo Large Data Splitter Useful
- Combine CSV files into one Excel workbook
- Option to keep each file as a separate sheet
- Option to merge everything onto a single sheet
- Sheets automatically named after their source files
- Output opens directly in Excel with no extra steps
- Runs fully offline for complete data privacy
Frequently Asked Questions
Will each CSV file become a separate tab in the workbook?
Yes, if you choose the separate-sheets option, each source CSV file is written to its own named tab within the workbook.
Can all the CSV data be combined onto a single sheet instead?
Yes, that option is available too, and the app will stack the data from all files onto one sheet if the column structures match.
Is there a limit to how many sheets a workbook can have?
Excel workbooks support a very large number of sheets, so merging dozens of CSV files into separate tabs isn't a practical concern.
Related guides and tools
This guide is part of TurboSoft’s CSV splitting resources. Turbo CSV Splitter handles all of these tasks offline on Windows.