macro to adjust for varying rows of data

[Plamanrich]

have a bunch of spreadsheets that are of varying rows of data. I want to record a mraco that will number the row numbers
and provide some formating in certain cells and column-total certain columns. The data is all in the same location column-wise,
only the number of rows differs. When I record the macro, it specifies that bottom of the columns (ie; Range "A32"). The
next spreadsheet may have 50 rows but the macro does everything as if there are 32 rows of data. How can I tell the macro
to adjust for more rows of information.
Thanks in advance.

[Al Chara]

You can put it in a for loop saying that something like:
dim StartRow as integer
dim EndRow as long
dim i as long
EndRow=ActiveSheet.UsedRange.Rows.Count
For i= StartRow to EndRow
'Insert your code here
Next i