Function ConvertNumToWord(ByVal InputAmount)
Dim WAmount, Temp
Dim DecimalPlace, Count
Dim Place(9) As String
Place(2) = " Thousand "
Place(3) = " Million "
Place(4) = " Billion "
Place(5) = " Trillion "
' Inputed Amout Represented as a String.
InputAmount = Trim(Str(InputAmount))
' Position of decimal place.
DecimalPlace = InStr(InputAmount, ".")

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

ConvertNumToWord = WAmount & " Only"
End Function
' Convert From amount range 100-999 into text
Function GetHundreds(ByVal InputAmount)
Dim Result As String
If Val(InputAmount) = 0 Then Exit Function
InputAmount = Right("000" & InputAmount, 3)
' conversation of hundreds place.
If Mid(InputAmount, 1, 1) <> "0" Then
Result = GetDigit(Mid(InputAmount, 1, 1)) & " Hundred "
End If
' Conversation of tens and ones place.
If Mid(InputAmount, 2, 1) <> "0" Then
Result = Result & GetTens(Mid(InputAmount, 2))
Else
Result = Result & GetDigit(Mid(InputAmount, 3))
End If
GetHundreds = Result
End Function

'Convertion From amount range 10-99 into text
Function GetTens(TensText)
Dim Result As String
Result = "" 
' Set Value for amount between 10-19
If Val(Left(TensText, 1)) = 1 Then 
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
' Set Value for amount between 20-99
Else
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

'Convertion From amount range 1-9 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