How to Set the Office 2007 Excel Theme as Default
Question details
The user wants to set the classic Office 2007 color theme as the default for all new Excel workbooks so that copied worksheets retain their original colors.

- Product
- Microsoft Excel
- Device & OS
- not provided
- Scenario
- Copying worksheets into new Excel workbooks causes unintended color changes due to newer default themes being applied.
- Observed behavior
- The color theme changes automatically to a newer Office theme when a worksheet is copied to a new workbook, altering the appearance of the workbook colors.
Before proceeding, ensure you have access to view hidden folders on your computer, as you will need to navigate to the hidden AppData directory to locate the XLStart folder.
Create a Default Workbook Template in the XLStart Folder
Create a customized workbook template named Book.xltx with the Office 2007 theme and save it to Excel's startup folder so all new workbooks use it automatically.
By saving a template named 'Book.xltx' in the XLStart folder, Excel uses this specific file as the baseline for all new, blank workbooks you create.
Please note that this method only controls the theme for newly created workbooks. If you are copying a worksheet into an existing workbook, the destination workbook's theme will override the copied worksheet's colors.
Launch Microsoft Excel and open a new, blank workbook.
Navigate to the 'Page Layout' tab on the ribbon, click on 'Themes', and select the classic 'Office 2007 - 2010' theme from the dropdown menu.
Click 'File' > 'Save As'. In the 'Save as type' dropdown menu, select 'Excel Template (*.xltx)'.
Name the file exactly 'Book.xltx' (without the quotes).
Navigate to your XLStart folder, which is typically located at C:\Users\[YourUsername]\AppData\Roaming\Microsoft\Excel\XLSTART, and save the file there.

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Frequently Asked Questions
Where is the XLStart folder located on my computer?
The XLStart folder is typically found at C:\Users\[YourUsername]\AppData\Roaming\Microsoft\Excel\XLSTART. You may need to enable 'Show hidden files, folders, and drives' in Windows File Explorer options to see the AppData folder.
Why do my copied worksheets still change color after setting up the Book.xltx template?
The Book.xltx template in the XLStart folder only dictates the theme for newly created, blank workbooks. If you copy a sheet into an existing workbook that uses a newer theme, the destination workbook's theme will automatically apply to the pasted data.
Can I manually apply the Office 2007 theme to an existing workbook?
Yes. Open the existing workbook, navigate to the Page Layout tab, click on Themes, and select the 'Office 2007 - 2010' theme to manually update the workbook's color palette.




