VBA Word: Bold cell's text till break line

I need to go through one column in my word table and change font to bold for all characters from the first one to first breakline so that would be the string im interested in:

                zz = Left(oCell.Range.Text, InStr(oCell.Range.Text, Chr(13)) - 1)

Im having difficulties in highlighting the 'zz' part of every cell

With appWord
            For Each oCell In .Tables(1).Range.Columns(2).Cells
                

                With .Selection
                    .Bold = True
                End With
            Next
        End With

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