Import/ Export sap script

Hi experts,

I know how to export a sap script form to a text file using pgm RSTXSCRP.

But i am unable to import the same text file into another script.Intially clicked on Form,I have given the object name as new form name and clicked on import ,clicked on Form / on front end and selected the text file.But iwas giving errors.

Is that new form name should have created before?..even then it was giving erros..

Can any body tell me how to do this?

Regards