I would like to open a Google Spreadsheet with a few parameters.
Can I add these few parameters in the URL to open the spreadsheet, and then in the spreadsheet load thes
Sandy Good provided an interesting answer and that workflow is indeed the only possible one but there is a major issue in that a webapp deployed this way won't be able to "open" your spreadsheet in the common sense of "open", ie open in a browser window to work on it normally.
At least not without a user action like a click on a link that would open the sheet in a new tab. Finally you would have a 2 steps process:
Launch the webapp via an URL with parameters that would write some values in the spreadsheet without seeing it and
Open the spreadsheet using a link shown in step 1... retrieving the values that step 1 wrote in some cell
Very cumbersome and nothing would prevent users to go directly to the spreadsheet without using your special URL...
All in all , it would be useless.
So I'm afraid the real answer it simply "no, not possible"