It means you can read them .
sent from my phone. please excuse brevity and spelling errors.
I am guessing this means you have the libewf installed when you built
BE. Since that supports split E01 you should have no problem?
Just a guess.
It also takes about 10 seconds to test...
reading them with bulk_extractor or just reading them in general?
bulk_extractor image.E01 -o ./outputdir
If you just want to read them there are many writeups about mounting
E01 files and they are not hard to find. If you are on windows the
free version FTKImager is probably the easiest.