We're sorry to hear that you are having problems.
Does it crash as soon as you select the file or does it start loading the images? It could be that it crashes because of RAM limitations.
If you could provide some more information on how you got to that state it would be really helpful. Are you using the 64 or 32 bit version? Are you on the latest version (1.5.1)? 1.5 had a bug that caused saves to be corrupted. And, if you can, it would be really helpful if we could take a look at your save file (you can contact us via mail about this).