1. save xlsx file on local PC, open the file outside Origin, copy some cells
2. go to Origin workbook, right click in the cell and paste link, save project.
3. new project
4. in Excel, modify some value, save and close Excel
5. in Origin, reopen the OPJU file
   --> Attention dialog pops up
6. click Yes
   ==>
   
   ==> opju file in Origin is not updated
   --> Excel file is opened

Fixed in Origin2020.