Late bound resolution; runtime errors could occur.

[sg2611]

I am getting a warning in my VB.Net application Warning
Late bound resolution; runtime errors could occur.
for the following code

Private Function CreateReportHeader(ByRef ExcelApp As Excel.Application, ByVal table As DataTable)
 
        Dim bHeaderCreated As Boolean = False
 
        Dim col As DataColumn = Nothing
 
        Dim nColIndx As Integer = 1
 
        m_nRowCnt += 1
 
        With ExcelApp
 
    .Rows("1:1").Select()           'warning
    .Selection.Font.Bold = True 'warning
 
.Worksheets(1).cells(m_nRowCnt, nColIndx).Value = "Sort Col" 'warning
 
.Worksheets(1).cells(m_nRowCnt, nColIndx).HorizontalAlignment = 1'warning

what shoudl I do?