No, that is not supported or possible in FormsCentral, it would be two separate actions.
If I understand you, would I need to set up the form to export to Excel, then in another step, save the form as a PDF?
Regardless of your goal yes, it would be separate steps - but let me see if I understand what you want so I can explain better...
I am assuming you want to export the response data to Excel, this is an action from the "File" = "Export Responses" menu item and can export all of the response data to Excel at one time (also has the option of PDF or CSV). That would be done as one step, exporting to Excel. If you also wanted a PDF version of the table with all responses you could repeat that and select "PDF" the second time.
If you want PDF's of each individual response (you can "Download Response as PDF" which is a PDF that looks like the original form filled out) then that is also a separate step and has to be done individually for each response you want to download as PDF.
Thank you, Josh -- this is very helpful. You understood my question perfectly, and I appreciate your explanation!