vb read word detect text format

This code shows how to analyse the highlighting colours for a particular table cell. It Note that it is written in VBA, and not in .NET, so might need a bit of tweaking.
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The colour descriptions are taken from Word Help

Sub CellHighLighting(cl As Word.Cell)

Dim ch As Word.Range
Dim i As Integer
Dim j As Integer
Dim prev As Integer
Dim strText() As String
Dim Colour() As Word.WdColorIndex
Dim strDesc() As String
Dim strMessage As String

prev = 999

For Each ch In cl.Range.Characters
    If Asc(ch.Text) > 31 Then
        If ch.HighlightColorIndex <> prev Then
            prev = ch.HighlightColorIndex
            ReDim Preserve strText(i)
            ReDim Preserve strDesc(i)
            ReDim Preserve Colour(i)
            Colour(i) = prev
            strDesc(i) = GetColourDescription(Colour(i))
            i = i + 1
        End If
        strText(i - 1) = strText(i - 1) & ch.Text
    End If
Next ch
For j = 0 To i - 1
    strMessage = strMessage & "Text: " & strText(j) & vbTab & "Description: " & strDesc(j) & vbCrLf
Next j
MsgBox strMessage
End Sub
Function GetColourDescription(Colour As Word.WdColorIndex) As String
    Dim strColourDesc As String
    
    Select Case Colour
        Case wdAuto  '0
            strColourDesc = "Automatic color. Default; usually black."
        Case wdBlack     '1
            strColourDesc = "Black color."
        Case wdBlue  '2
            strColourDesc = "Blue color."
        Case wdBrightGreen   '4
            strColourDesc = "Bright green color."
        Case wdByAuthor  '-1
            strColourDesc = "Color defined by document author."
        Case wdDarkBlue  '9
            strColourDesc = "Dark blue color."
        Case wdDarkRed   '13
            strColourDesc = "Dark red color."
        Case wdDarkYellow    '14
            strColourDesc = "Dark yellow color."
        Case wdGray25    '16
            strColourDesc = "Shade 25 of gray color."
        Case wdGray50    '15
            strColourDesc = "Shade 50 of gray color."
        Case wdGreen     '11
            strColourDesc = "Green color."
        Case wdNoHighlight   '0
            strColourDesc = "Removes highlighting that has been applied."
        Case wdPink  '5
            strColourDesc = "Pink color."
        Case wdRed   '6
            strColourDesc = "Red color."
        Case wdTeal '10
            strColourDesc = "Teal color."
        Case wdTurquoise     '3
            strColourDesc = "Turquoise color."
        Case wdViolet    '12
            strColourDesc = "Violet color."
        Case wdWhite     '8
            strColourDesc = "White color."
        Case wdYellow    '7
            strColourDesc = "Yellow color."
    End Select
    GetColourDescription = strColourDesc
End Function

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