You cannot. EPLAN platforms are not backward compatible in that direction. Projects saved in newer platforms cannot be opened in older versions like 2.9 SP1.
: Identifies the plant section or overall system. eplan electric p8 version 29 sp1 update 4 x64 free
: Integration with cloud-based component data. You cannot
If you want to delve deeper into optimizing this specific platform, let me know: let me know: