• I spoke too soon. When I try to run the package, I get the following error:

    Error at Data Flow Task [Excel Source [29]]: SSIS Error Code DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER. The AcquireConnection method call to the connection manager "Excel Connection Manager" failed with error code 0xC0202009. There may be error messages posted before this with more information on why the AcquireConnection method call failed.

    Error at Data Flow Task [SSIS.Pipeline]: component "Excel Source" (29) failed validation and returned error code 0xC020801C.

    Error at Data Flow Task [SSIS.Pipeline]: One or more component failed validation.

    Error at Data Flow Task: There were errors during task validation.

    Error at XXXXXX_POS_WEEKLY [Connection manager "Excel Connection Manager"]: SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80004005.

    An OLE DB record is available. Source: "Microsoft JET Database Engine" Hresult: 0x80004005 Description: "Unexpected error from external database driver (22).".