Replacing Comma character with Serial No

Question

In place of
Comma space Anil, Comma space Sunil etc as illustrated below:

, Anil, Sunil etc

. I want to Give Serial No in Same Line like:

(1) Anil (2) Sunil etc

'The Procedure has to do a lot of unnecessary work. Is there a better way.

'Put Curser anywhere befor first Comma

Sub GiveSerialToLinerPoints()
   

x = ActiveDocument.Range(0, Selection.Paragraphs(1). _
Range.End).Paragraphs.Count
i = 0
For Each char In ActiveDocument.Paragraphs(x).Range.Characters
    
        If char = "," Then
            i = i + 1
        End If
Next char

TotalCommas = i

For i = 1 To TotalCommas
    With Selection
            .StartIsActive = False
            .Extend Character:=","
            .Collapse Direction:=wdCollapseEnd
            .MoveLeft
            .Expand Unit:=wdCharacter

                    If .Text = "," Then
                            .Text = " (" & i & ")"
                    End If
        End With
  Next i
End Sub

Answer 1

Try:

Sub Demo()
Application.ScreenUpdating = False
Dim i As Long
With ActiveDocument.Range
  With .Find
    .ClearFormatting
    .Replacement.ClearFormatting
    .Text = ","
    .Replacement.Text = ""
    .Forward = True
    .Wrap = wdFindStop
    .Format = False
    .MatchCase = False
    .MatchWholeWord = False
    .MatchWildcards = False
    .MatchSoundsLike = False
    .MatchAllWordForms = False
  End With
  Do While .Find.Execute
    i = i + 1
    .Text = "(" & i & ")"
    .Collapse wdCollapseEnd
  Loop
End With
Application.ScreenUpdating = True
MsgBox i & " commas replaced."
End Sub

To limit the F/R to just the paragraph the insertion point is in, you could use:

Sub Demo()
Application.ScreenUpdating = False
Dim Rng As Range, i As Long
With Selection.Paragraphs.First
  Set Rng = .Range
  With .Range
    With .Find
      .ClearFormatting
      .Replacement.ClearFormatting
      .Text = ","
      .Replacement.Text = ""
      .Forward = True
      .Wrap = wdFindStop
      .Format = False
      .MatchCase = False
      .MatchWholeWord = False
      .MatchWildcards = False
      .MatchSoundsLike = False
      .MatchAllWordForms = False
    End With
    Do While .Find.Execute
      If .InRange(Rng) Then
        i = i + 1
        .Text = "(" & i & ")"
      Else
        Exit Do
      End If
      .Collapse wdCollapseEnd
    Loop
  End With
End With
Application.ScreenUpdating = True
MsgBox i & " instances found."
End Sub