This is a variation of mine of a code posted by Macropod. It will only work if the text does actually have 3 spaces as stated above.
Sub PutInTable()
Application.ScreenUpdating = False
With ActiveDocument.Range
With .Find
.ClearFormatting
.Replacement.ClearFormatting
.Forward = True
.Wrap = wdFindContinue
.Format = False
.MatchWildcards = True
.Text = "[\-]{5,}@[^13^l]"
.Replacement.Text = ""
.Execute Replace:=wdReplaceAll
.Text = "([0-9/]{10}, [0-9:]{5}) ([!^13^l]@)[^13^l]([!^13^l]@[^13^l])"
.Replacement.Text = "\2^t\1^t\3"
.Text = " "
.Replacement.Text = "vbTab"
.Execute Replace:=wdReplaceAll
End With
.InsertBefore "Time" & vbTab & "Message" & vbTab
.ConvertToTable Separator:=vbTab, NumColumns:=2, Format:=wdTableFormatGrid1, _
ApplyHeadingRows:=True, AutoFit:=True, AutoFitBehavior:=wdAutoFitWindow
End With
Application.ScreenUpdating = True
End Sub