Try


StuName = Left(ActiveDocument.Tables(1).Cell(4, 2), Len(
ActiveDocument.Tables(1).Cell(4, 2))-2)

A throwaway macro shows there are 2 'table-related' characters in the Value

Option Explicit

Sub test()
    
    Dim s As Variant
    
    s = ActiveDocument.Tables(1).Cell(1, 1)
    MsgBox "#" & s & "#"

    s = "#" & Left(s, Len(s) - 2) & "#"
    MsgBox s

End Sub