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Template Issues

How to Set the Default Number Format for New Excel Workbooks

Algirdas JasaitisAlgirdas Jasaitis Oct 13, 2026 870 views

Question details

The user wants to automatically apply a specific number format to all new Excel workbooks without having to format cells manually each time.

How to Set the Default Number Format for New Excel Workbooks
Product
Microsoft Excel
Device & OS
not provided
Scenario
Creating a new workbook and needing a specific default number formatting style instantly applied.
Observed behavior
By default, Excel uses a standard general number formatting, requiring users to manually select and format cells for their preferred styles.
Before you start

Ensure you have your computer's hidden files and folders visible in your file explorer, as the system-level Excel startup folders are usually hidden by default.

Solution 1Recommended

Create a Custom Excel Template in the XLStart Folder

Save a pre-formatted blank workbook into Excel's startup folder so every new file automatically uses your desired number format.

Excel uses the XLStart folder to determine the default settings of any new workbook you create. By placing a customized template file here, you can dictate the default formatting.

1
Open a Blank Workbook

Launch Excel and open a completely blank workbook.

2
Apply Desired Number Format

Select all cells in the worksheet by clicking the triangle in the top-left corner (or pressing Ctrl+A), then right-click and choose 'Format Cells' to apply your preferred default number format.

3
Save as a Template

Navigate to File > Save As. In the file type dropdown menu, select 'Excel Template (*.xltx)'.

4
Locate the XLStart Folder

Save the file to your XLStart directory, which is typically located at C:\Users\[YourUsername]\AppData\Roaming\Microsoft\Excel\XLSTART.

5
Name the File

Name the file exactly 'Book.xltx' and click Save. Restart Excel to see the changes.

Create a Custom Excel Template in the XLStart Folder
Template Applied Successfully: The next time you open Excel or press Ctrl+N, your new workbooks will automatically inherit this specific number format.
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Frequently Asked Questions

Can I apply conditional formatting to a default template?

Yes, you can set up conditional formatting rules in your blank workbook before saving it as a 'Book.xltx' template in the XLStart folder. Every new workbook will then include those rules by default.

Why is my XLStart folder empty or missing?

The XLStart folder is located in the AppData directory, which is hidden by default in Windows. You must enable 'Show hidden files, folders, and drives' in your Windows File Explorer View options to locate it.

Will changing the default number format affect existing Excel files?

No, modifying the default template or system startup folder only applies to entirely new workbooks you create. Your existing Excel files will retain their original formatting.

Can I have multiple default templates?

Excel only uses the specific 'Book.xltx' file in the XLStart folder for the default blank workbook behavior. However, you can save other customized templates in your Personal Templates folder and select them manually via File > New.