Apologies for being lazy here and trawling through help topics but I need to urgently reinstall after my old mac crashed. I have all backups but no app / program etc
If you bought from the Mac App Store, just re-downloading it on your new machine from there you won’t need to worry about licence. But if you bought direct from Lit&Lat, you need to know your licence details. As long as you know the email that you used to register it, they can retrieve the details if you’ve forgotten them, but you’ll need to contact them directly. You’ll have to reset your preferences and compile formats if you don’t have them stored elsewhere.
HTH
Mark
Beyond installation, here is a system migration checklist that may help you out with putting your backed up data back where it should be.