• This might work ...

    1) Create a string package-scoped variable called ExcelFilePath (this will correspond with the ExcelFilePath property of your Excel destination)

    2) Use a script task in your Foreach loop to populate ExcelFilePath, for every iteration of the container.

    3) Use an Expression in your Excel destination to set the ExcelFilePath property to whatever is contained in your variable.

    If you haven't even tried to resolve your issue, please don't expect the hard-working volunteers here to waste their time providing links to answers which you could easily have found yourself.