Illustrator CC2019 Compatibility with CorelDraw x4

I'm trying to save an AI file on my Mac (using IllustratorCC2019) as an EPS file to be compatible, imported and editable in CorelDrawX4 on a PC.  Corel will randomly import some of the eps but not all of them and I didn't do anything different with the EPS file when I saved it.  I've tried downsaving it to an earlier version such as Illustrator CS3 (which supposedly CorelDrawx4 will only import files up to this version or earlier versions.  Still no luck.  I've tried saving my AI file as a compatible PDF but that won't work either.  CorelDraw only gives me the option to IMPORT and not OPEN....not sure if that would make a difference or not either.  I've jacked with my settings and preferences so much now trying to get Corel to import the file that there's no telling what all I've messed up now.  Any help suggestions would be greatly appreciated as I have deadlines to meet with these files at my job! Thank you!