Some VBA Codes for Formating Tables

Sub resizeTables()
For Each Table In ActiveDocument.Tables                     'Loop all tables in the active document
    Table.PreferredWidthType = wdPreferredWidthPercent      'Accept preferred widths as a percentage of window width,
    Table.PreferredWidth = 100                              'Set table width=100%
    On Error Resume Next
    Table.Columns(1).PreferredWidth = 50                    'Set Column 1 width to 45%.
    Table.Columns(2).PreferredWidth = 10                    'Set Column 2 width to 10%
    Table.Columns(3).PreferredWidth = 40                    'Set Column 3 width to 45%
    On Error GoTo 0                                         'Apply to table with less columns
Next
End Sub

Sub addborderTables()
    For Each Table In ActiveDocument.Tables                 'Loop all tables in the active document
        With Table.Borders                                  'Choose table border for action
            .InsideLineStyle = wdLineStyleSingle            'Inside line style
            .OutsideLineStyle = wdLineStyleSingle           'Outside line style
        End With
        With Table.Rows(1).Borders(wdBorderBottom)          'Choose row(1) bottom line for action
            .LineStyle = wdLineStyleDouble                  'Set line style to double line
        End With
        Table.Rows(1).Range.Font.Bold = True                'Set fonts in row(1) to bold
    Next
End Sub