access previous steps after saving files

how can access my previous steps in hypermesh if i had saved my cfd file and opened again and can't do undo so how i will access my previous steps (ex. i had mad a cfd model which have steps like meshing defeaturing wraping and after sometime i got to know that my meshing is been wrong and deafeaturing also had a problem so is their any way to access that steps so that will easy for me to do that work) or is their any way to do this work