Numbers Open Chosen Document

tell application "Numbers"
    activate
    try
        set the chosenDocumentFile to ¬
            (choose file of type ¬
                {"com.apple.iwork.numbers.numbers", ¬
                    "com.apple.iwork.numbers.sffnumbers", ¬
                    "com.microsoft.excel.xls", ¬
                    "org.openxmlformats.spreadsheetml.sheet"} ¬
                    default location (path to documents folder) ¬
                with prompt "Choose the Numbers document or Excel workbook to open:")
        open the chosenDocumentFile
    on error errorMessage number errorNumber
        if errorNumber is not -128 then
            display alert errorNumber message errorMessage
        end if
    end try
end tell