In general, if you type data down a column or across a row and then format the cells, Excel extends that formatting to the next cell when you type data that is similar to the cells above or to the left and the following conditions are true:
- Three of the five previous cells in the list are similar in data type and formatting.
-and-
- There is no custom formatting already applied to the cell in which you are entering data.
There may also be further limitations and conditions. For additional information about how auto-extended formatting works, click the article number below
to view the article in the Microsoft Knowledge Base:
231002�
XL2000: How Auto-Extend List Behavior Works