A significant part of the issue you're having is that your table appears to be comprised of tables cut & pasted into Word with a variety of Table Styles, each with their own alignments, etc. The following macro should be able to clean them up.
Code:
Sub RepairTbl()
Dim i As Long, j As Long, Tbl As Table
Dim pWdth As Single, sCWdth As Single, bkClr As Long
With ActiveDocument
Set Tbl = .Tables(1)
With Tbl
.AllowAutoFit = False
.Cell(1, 1).PreferredWidthType = wdPreferredWidthPoints
pWdth = .Cell(1, 1).PreferredWidth
With .Range
On Error Resume Next
For i = .Cells.Count To 1 Step -1
If .Cells(i).ColumnIndex = 1 Then
Tbl.Split Tbl.Range.Cells(i).RowIndex
End If
Next
On Error GoTo 0
End With
End With
For Each Tbl In .Tables
With Tbl
.AllowAutoFit = False
With .Rows
.Alignment = wdAlignRowLeft
.LeftIndent = 0
.WrapAroundText = False
End With
End With
Next
For i = 1 To .Tables.Count
sCWdth = 0
With .Tables(i)
.AllowAutoFit = False
.PreferredWidthType = wdPreferredWidthPoints
.PreferredWidth = pWdth
With .Range
If .Cells.Count = 1 Then
bkClr = .Cells(1).Shading.BackgroundPatternColorIndex
End If
End With
.Style = "Table Normal"
With .Range
For j = 1 To .Cells.Count
sCWdth = sCWdth + .Cells(j).Width
Next
If sCWdth <> pWdth Then
For j = 1 To .Cells.Count
.Cells(j).Width = .Cells(j).Width * pWdth / sCWdth
Next
End If
If .Cells.Count = 1 Then
If bkClr <> 0 Then .Cells(1).Shading.BackgroundPatternColorIndex = bkClr
End If
End With
End With
Next
While .Tables.Count > 1
.Tables(1).Range.Characters.Last.Next.Select
Selection.Delete
Wend
With .Tables(1)
.Borders.Enable = True
.Rows.Alignment = wdAlignRowCenter
End With
End With
End Sub
PS: Cut & paste the problem table to another document for processing. Once processed, you can copy it back to the source document.