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Excel Functions : Convert Numbers into Words

Modified code given below for those who want to use it. Currency inputs are optional and you will not need to input currency details in case you are using it for Indian Currency. Still this can be used for any currency provided you give currency inputs.
unction SpellCurr(ByVal MyNumber, _
Optional MyCurrency As String = "Rupee", _
Optional MyCurrencyPlace As String = "P", _
Optional MyCurrencyDecimals As String = "Paisa", _
Optional MyCurrencyDecimalsPlace As String = "S")
'*******************************************************************
'* Based on SpellNumbers UDF by Microsoft, Which handles only Dollars as currency                                *
'* UDF modfied by Yogesh Gupta, smile[email protected], Ygblogs.blogspot.com on July 21, 2009                      *
'* UDF modified on September 04, 2009 to make currency inputs optional, by default it will use Indian Currency   *
'* This modified UDF can be used for any currency in case you provide for currency inputs                        *
'* User can define the Prefix and Sufix place for Currency and CurrencyDecimals                                  *
'* MyNumber = Numeric Value you need to convert into words                                                       *
'* MyCurrency = Name of your Currency - i.e. Dollar for USA                                                      *
'* MyCurrencyPlace = Prefix or Suffix the currency, use "P" for Prefix and "S" for Suffix                        *
'* MyCurrencyDecimals = Name of your Currency Decimals - i.e. Cent for USA                                       *
'* MyCurrencyDecimalsPlace = Prefix or Suffix the currency decimals, use "P" for Prefix and "S" for Suffix       *
'*******************************************************************
          Dim Rupees, Paisa, Temp
          Dim DecimalPlace, Count
    
          ReDim Place(9) As String
          Place(2) = " Thousand "
          Place(3) = " Million "
          Place(4) = " Billion "
          Place(5) = " Trillion "
      
          'String representation of amount.
          MyNumber = Trim(Str(MyNumber))
      
          'Position of decimal place 0 if none.
          DecimalPlace = InStr(MyNumber, ".")
      
          ' Convert Paisa and set MyNumber to Rupee amount.
          If DecimalPlace > 0 Then
              Paisa = GetTens(Left(Mid(MyNumber, DecimalPlace + 1) & _
                  "00", 2))
              MyNumber = Trim(Left(MyNumber, DecimalPlace - 1))
          End If

          Count = 1

          Do While MyNumber <> ""
              Temp = GetHundreds(Right(MyNumber, 3))
              If Temp <> "" Then Rupees = Temp & Place(Count) & Rupees
              If Len(MyNumber) > 3 Then
                  MyNumber = Left(MyNumber, Len(MyNumber) - 3)
              Else
                  MyNumber = ""
              End If
              Count = Count + 1

          Loop
        
            If MyCurrencyPlace = "P" Then
                Select Case Rupees
                    Case ""
                        Rupees = MyCurrency & "s" & " Zero"
                    Case "One"
                        Rupees = MyCurrency & " One"
                    Case Else
                        Rupees = MyCurrency & "s " & Rupees
                End Select
            Else
                Select Case Rupees
                    Case ""
                        Rupees = "Zero " & MyCurrency & "s"
                    Case "One"
                        Rupees = "One " & MyCurrency
                    Case Else
                        Rupees = Rupees & " " & MyCurrency & "s"
                End Select
            End If
        
          If MyCurrencyDecimalsPlace = "S" Then
                Select Case Paisa
                    Case ""
                        Paisa = " Only"
                    Case "One"
                        Paisa = " and One " & MyCurrencyDecimals & " Only"
                    Case Else
                        Paisa = " and " & Paisa & " " & MyCurrencyDecimals & "s Only"
                End Select
          Else
                Select Case Paisa
                    Case ""
                        Paisa = " Only"
                    Case "One"
                        Paisa = " and " & MyCurrencyDecimals & " One " & " Only"
                    Case Else
                        Paisa = " and " & MyCurrencyDecimals & "s " & Paisa & " Only"
                End Select
          End If
      
          SpellCurr = Rupees & Paisa

      End Function

      '*******************************************
      ' Converts a number from 100-999 into text *
      '*******************************************
  
      Function GetHundreds(ByVal MyNumber)
          Dim Result As String
          If Val(MyNumber) = 0 Then Exit Function
          MyNumber = Right("000" & MyNumber, 3)
          ' Convert the hundreds place.
          If Mid(MyNumber, 1, 1) <> "0" Then
              Result = GetDigit(Mid(MyNumber, 1, 1)) & " Hundred "
          End If

          ' Convert the tens and ones place.
          If Mid(MyNumber, 2, 1) <> "0" Then
              Result = Result & GetTens(Mid(MyNumber, 2))
          Else
              Result = Result & GetDigit(Mid(MyNumber, 3))
          End If
          GetHundreds = Result
      End Function

      '*********************************************
      ' Converts a number from 10 to 99 into text. *
      '*********************************************
     Function GetTens(TensText)

          Dim Result As String
          Result = ""           ' Null out the temporary function value.
          If Val(Left(TensText, 1)) = 1 Then   ' If value between 10-19...
              Select Case Val(TensText)
                  Case 10: Result = "Ten"
                  Case 11: Result = "Eleven"
                  Case 12: Result = "Twelve"
                  Case 13: Result = "Thirteen"
                  Case 14: Result = "Fourteen"
                  Case 15: Result = "Fifteen"
                  Case 16: Result = "Sixteen"
                  Case 17: Result = "Seventeen"
                  Case 18: Result = "Eighteen"
                  Case 19: Result = "Nineteen"
                  Case Else
              End Select
          Else                                 ' If value between 20-99...
              Select Case Val(Left(TensText, 1))
                  Case 2: Result = "Twenty "
                  Case 3: Result = "Thirty "
                  Case 4: Result = "Forty "
                  Case 5: Result = "Fifty "
                  Case 6: Result = "Sixty "
                  Case 7: Result = "Seventy "
                  Case 8: Result = "Eighty "
                  Case 9: Result = "Ninety "
                  Case Else
              End Select

              Result = Result & GetDigit _
                  (Right(TensText, 1))  ' Retrieve ones place.
          End If
          GetTens = Result
      End Function

      '*******************************************
      ' Converts a number from 1 to 9 into text. *
      '*******************************************
 
      Function GetDigit(Digit)
          Select Case Val(Digit)
              Case 1: GetDigit = "One"
              Case 2: GetDigit = "Two"
              Case 3: GetDigit = "Three"
              Case 4: GetDigit = "Four"
              Case 5: GetDigit = "Five"
              Case 6: GetDigit = "Six"
              Case 7: GetDigit = "Seven"
              Case 8: GetDigit = "Eight"
              Case 9: GetDigit = "Nine"
              Case Else: GetDigit = ""
          End Select
      End Function
You will need to copy this code to regular VBA module of your workbook Use : =SpellCurr(A1); A1 = Cell Reference Source : http://www.yogeshguptaonline.com/2009/07/excel-functions-convert-numbers-into.html