I have the following range selected in an excel spreadsheet

PHP Code:
Dim sel1 As Excel.Range
key1 = "A" & intUpperSort
key2 = "A" & intUpperSort + intRowSortRange - 2
key3 = "E" & intUpperSort + intRowSortRange - 2
key4 = "E" & intUpperSort
sel1 = oSheet.Cells.Range(key1, key3) 
how do i sort sel1 accodring to Column E Alphabetically Ascending?

thx
db