excel formatting

I have the following excel 2003 formatting to ask:
I am writing a Visual Basic.Net 2005 desktop application write out data
from a sql server 2005 database to a excel 2003 spreadsheet.

After you look at my questions you can see a portion of the code that I am
currently working with. if you can answer any of the questions below, I would
appreciate it.

I would like to know how to change the following code to do the following:

1. I would like to have the center data in most of the columns including
the column headers.
2. I would like to see all the data in all the cels including the column
headers.
3. I would like the last column of the table to 'wraparound' to the next
line and
display no more that 75 to 100 characters in a line. (The last column
is varchar(500) due to the messages that could be displayed.)
4. I would like the column headers to be BOLD and the font be Times new
Roman
and be able to control the font size.
5. I would like the detail lines to be Times New Roman in a regular font
size.
6. Some of the column headers are larger than the detail column. Thus I
need the
column headers to wrap. Some of the column headers are larger four words
long. Thus, I do not want the column headers to 'wrap' in the middle of
a word. I would like the column headers only to wrap between words.



Private Sub ShowReport_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs)
Handles Button1.Click
Dim xlApp As Excel.Application
Dim xlWorkBook As Excel.Workbook
Dim xlWorkSheet As Excel.Worksheet
Dim misValue As Object = System.Reflection.Missing.Value
Dim xlClApp As Excel.ApplicationClass
Dim excelFile As String = " "
Dim dt As DataTable
Dim da4 As SqlDataAdapter
cnn4 = New SqlConnection(connectionString)
cmd4 = New SqlCommand("stored procedure name", cnn4)
cmd4.CommandType = CommandType.StoredProcedure
With cmd4
.Parameters.Add("@parm1", SqlDbType.VarChar).Value = strParm1
.Parameters.Add("@parm2", SqlDbType.VarChar).Value = strParm2
End With
da4 = New SqlDataAdapter(cmd4)
da4.Fill(ds4)
xlApp = New Excel.Application
xlClApp = New Excel.ApplicationClass
xlApp.Workbooks.Add()
xlWorkBook = xlApp.Workbooks.Add(misValue)
xlWorkSheet = CType(xlWorkBook.Sheets("sheet1"),
Microsoft.Office.Interop.Excel.Worksheet)
xlApp.Visible = False
xlApp.ScreenUpdating = True
dt = ds4.Tables(0)
'Add the column headings for the from the dataset
Dim dc As DataColumn
Dim iCols As Int32 = 0
For Each dc In dt.Columns
xlWorkSheet.Range("A1").Offset(0, iCols).Value = dc.ColumnName
xlWorkSheet.Range("A1").Offset(0, iCols).Font.Bold = True
xlWorkSheet.Range("A1").Offset(0, iCols).BorderAround()
iCols += 1
Next

Dim iRows As Int32
For iRows = 0 To dt.Rows.Count - 1
xlWorkSheet.Range("A2").Offset(0, iCols).Select()
xlWorkSheet.Range("A2").Offset(0, iCols).Justify()
xlWorkSheet.Range("A2").Offset(0, iCols).WrapText = True
xlWorkSheet.Range("A2").Offset(iRows).Resize(1, iCols).Value = _
dt.Rows(iRows).ItemArray()
xlWorkSheet.Range("A2").Offset(0, iCols).BorderAround()
Next
excelFile = "c:\exceltst.xls"
xlWorkBook.Sheets("sheet1").SaveAs(excelFile)
xlWorkBook.Close()
xlApp.Quit()
xlWorkSheet = Nothing
xlWorkBook = Nothing
xlClApp = Nothing
da4.Dispose()
cmd4.Dispose()
cnn4.Close()