Okdo Excel Merger Tutorial: Combine Sheets, Preserve Formatting, and Automate

How to Use Okdo Excel Merger to Merge Spreadsheets Fast

Overview
Okdo Excel Merger is a lightweight Windows utility that quickly combines multiple Excel files or worksheets into a single workbook or a single worksheet. It supports .xls, .xlsx and .xlsm, batch processing, merging specific sheets, top-to-bottom or left-to-right stacking, and inserting blank rows/columns between sections — all without opening Excel. The steps below assume Windows and the desktop Okdo Excel Merger application (not the command-line version).

Before you start

• Install Okdo Excel Merger (download from the vendor and run the installer).
• Gather all source workbooks in a folder for faster selection.
• Decide whether you want a single workbook (multiple output sheets) or a single worksheet (all data combined into one sheet).

Quick step‑by‑step

1. Open Okdo Excel Merger
2. Add files or a folder
   • Click Add File(s) or Add Folder, or drag & drop the files/folder into the app.
   • The app can scan a directory and list every workbook it finds.
3. Select specific worksheets (optional)
   • Expand each workbook in the list to view sheets.
   • Check only the sheets you want to include and arrange their order by using the Move Up/Move Down controls.
4. Choose merge mode
   • Merge into one workbook (each source sheet becomes its own sheet in the output).
   • Merge into one worksheet (all data appended into a single sheet).
5. Set orientation and spacing (when merging into one worksheet)
   • Orientation: stack top-to-bottom (default) or left-to-right.
   • Insert blank rows/columns: enter a number to separate contents from different sheets.
6. Configure output file and options
   • Click Browse/Output to choose the destination folder and filename (choose .xls/.xlsx/.xlsm as supported).
   • Enable Overwrite if you want the program to replace an existing output file.
7. Run the merge
   • Click Start/Convert. The program processes files in batch and creates the merged workbook quickly.
8. Verify results in the output file
   • Open the merged workbook in Excel (if needed) and confirm sheet order, data alignment, and formatting.

Tips for faster, accurate merges

• Use the Add Folder option when combining many files — it’s faster than adding files one-by-one.
• If source sheets have headers, use a consistent header row across files so stacked results remain aligned; remove duplicate headers manually or with Excel after merging if necessary.
• For very large batches or automation, use the Okdo Excel Merger Command Line version; it supports wildcards and scripted runs. Example command:

Code
Copy CodeCopied
excelmerger.exe -workbook=c:\files*.xls -dest=c:\out\merged.xls -mergemode=1 

• If formatting must be preserved across sheets, test with a small sample first. Some complex formatting or macros may require post-merge adjustments.

Common use cases

• Consolidating monthly reports from multiple contributors into one file.
• Combining exported data sheets into a single analysis sheet.
• Producing a single deliverable workbook containing selected sheets from many sources.

Troubleshooting

• If a file won’t load, confirm it’s a supported format (.xls/.xlsx/.xlsm) and not password‑protected.
• Watch for duplicate header rows when stacking; remove extras in Excel or set up consistent inputs.
• If performance is slow with extremely large files, merge in smaller batches and then combine results.

Conclusion
Okdo Excel Merger is an efficient way to combine many Excel workbooks or chosen worksheets quickly without opening Excel. Use folder-level imports, select only needed sheets, choose the correct merge mode and orientation, and consider the command-line version for automation to maximize speed.

Date: February 6, 2026