I have a problem when importing excel to primavera version 6.7 the issue that i export XLS file for resource assignment including Activities & Resource & resource assignment but with applying some filter , after i update the resource data and import back the XLS file by importing resource assignment only ,comes the problem that some actual data is changed like Actual start and actual finish also the remaining duration is going crazy for some activities it gives something like 2465 days also some %complete is changed to 0