Setting the default properties for cells in all new spreadsheets

[Bon Bon]

How can I set the default properties of spreadsheet cells (e.g.- always
vertically centred, word wrap, Aerial 10point) so that the cells in all new
spreadsheets are created with these attributes?

 

[Bernard Liengme]

The basic answer is to save the workbook as Sheet.xlt and Book.xlt (or
Sheet.xltx and Book.xltx in Excel 2007) in the XLSTART folder.
More details at
http://office.microsoft.com/en-us/excel/HA010548151033.aspx
This is for Excel2000 but the ideas are the same fro all versions
best wishes