May 26, 2019 at 4:32 am #57730
Hany Ismail, MSC, PMP
Let us find the root of the problem together bu following these steps:
1- Try to export excel sheet and import it again without any changes. If it works, it means that P6 is fine and the issue is in Excel. If it does not work, then the issue is in your P6 version, please change it.
2- If the above step worked, then you have a problem in the excel. Mainly check the region settings in windows date and time, make it UK standard or USA standard.
3- If the above step did not work, try to install a fresh copy of your system including windows, primavera, and excel.