Way to predetermine file and caching issue in Workspace Advanced?

[cognosdelaware]

hi,

 

  I have a report that uses external data in Cognos Workspace Advanced and is prompting to pick the file "C:\Temp\Myfile.xlsx".

  I need to be able to run the report and pull this file in from a predetermined location, instead of prompting the user to pick the file. Is there a way to do this?

  Also, I noticed if I pick the file once from a location, on subsequent run of the report, it never prompts again. I need it to at least prompt again, just in case the user wants to pick a different location. When it runs subsequent times, it seems like it runs the same file through.

Thanks