E-Maculation

I recently downloaded a file from MyAbandonware.com and it is a .toast file. I tried to use it in sheep shaver but it can't open the file. Is there anything that I can do to fix this?

That is a Toast disk image file. You can add it to the volumes list in SheepShaver preferences (SheepShaver for OSX) or in SheepShaver GUI (SheepShaver for Windows). Next time you start SheepShaver, the volume will be mounted on the desktop in SheepShaver.

It eorks but then when I install the software and try to use it, SheepShaver crashes...

If you want further help, you will need to provide much more detailed information, like which host system, which SheepShaver build, which MacOS version, which software you try to run in SheepShaver.