Hi Stepan,
Let me put an example in to this and try to understand.
Export is being performed using SWPM 1.0 SP9
Now you plan to performed import using SWPM 1.0 SP10 or higher
In that case it is possible.
Another example.
If you perform export using SWPM from file 70SWPM10SP04.sar and try to perform import using the SWPM10SP04.sar file. It is not going to help as you may not find suitable options to perform the import.
Hope this helps.
Regards,
Deepak Kori