Can't open Pokemon Black 2 in PKHeX - file too large in size error

[KingLucifer123456789]

I can't open Pokemon Black 2 ROM in PXHeX. It shows the file is too large error. I had earlier downloaded another ROM of Black 2 but even that one could not be loaded. I have been able to load all the other games till now ranging from Heartgold to USUM. It only shows this error in Black 2 ROM

[umbreon86]

PKHeX is for save files, not for ROMS. You'd need to find/export your save file and then load that with PKHex.