Create a Workbook where you format all cells of all worksheets as Arial 10
centered.

Save this workbook as "C:\Program Files\Microsoft
Office\Office\XLStart\Book.xlt")

HTH
--
AP

"Eric" a écrit dans le message de news:
...
I would like to set the default font and size to be Arial with 10 size and
align to the middle whenever I start up Excel. Does anyone have any
suggestion?
Thank you in advance
Eric