I've been away from poker for years but making a return. I have a HM2 licence and have just downloaded the HM3 trial, for now, with a view to purchasing a licence.
I've reinstalled HM2, having uninstalled it all years ago. I have a file called backup.hembk but when I try the restore option in HM2, it doesn't appear to be the correct file type.

Can I get my data back in from this single file somehow, so I can then move from HM2 to HM3?

Thank you.