Setting a parameter to elements with equal label (title) from excel file

I have the concrete beams modeled by parts in the Revit, but these parts have the same parameter “Title”. For example: there are two parts of one single beam named V1A, so both these parts are called V1A as well. I need to export the beam titles to a column at excel but without repeat it for the beams that have more than one part and in the second column at excel there will be empty fields for the parameter “File”, so that other users can fulfill it. Once it’s fulfilled I want to import the sheet back to revit so that the parameter “File” is assigned to the beams, even those who have multiple parts (The beams with multiple parts must receive the same “File” information).