To change Excel 2007 default font, follow these steps:
- Click the Microsoft Office Button.

- Click Excel Options (at the bottom right of the menu).
- Excel Options window will open.
- In Excel Options window (left side) click Popular.
- Under When creating new workbooks (see the red rectangle in the image above) , specify the required font face and font size.




















In the Modify group you can specify custom document information panel template (contains author, title, subject ..etc.)