how is separating the word to character ?

Function AddSpace(Str As String) As String
    Dim i As Long
    For i = 1 To Len(Str)
        AddSpace = AddSpace & Mid(Str, i, 1) & " "
    Next i
    AddSpace = Trim(AddSpace)
End Function

How to install your new code
Copy the Excel VBA code
Select the workbook in which you want to store the Excel VBA code
Press Alt+F11 to open the Visual Basic Editor
Choose Insert > Module
Edit > Paste the macro into the module that appeared
Close the VBEditor
Save your workbook (Excel 2007+ select a macro-enabled file format, like *.xlsm)


Then use:

=AddSpace(A3)