@anna-cluckers ,
Notepad++ itself doesn’t have a way to grab a file off of the old laptop.
If you had an external backup of the file, you could copy it from the backup to your new laptop, but it’s doubtful that you’d be asking for our help if you had a backup.
If you had saved your file in a OneDrive or Dropbox or similar cloud folder, then you would be able to download the file to your new laptop from that web service; but, once again, you wouldn’t be asking us for help if it were that easy.
Depending on how bad the “crash” was on the old laptop, the things I can think of:
if you can boot the old, then you should be able to copy the file onto a thumb drive and put it on the new laptop
the the old laptop cannot boot, maybe you have a tech-savvy friend who can help you take the drive out of the old laptop, and see if you can get it to be read as a second drive in your new laptop, so that you can copy the file across
if the old laptop’s drive is not readable, there’s not much that can be done. (A paid data recovery service might be able to help, but that’s a long-shot.)
But none of these answers has anything to do with Notepad++. Unfortunately, Notepad++ itself cannot help you with recovering the file from another machine, and this Notepad++ Community forum is focused on Notepad++ itself, so if you need more help with recovering a file from your old laptop, you’ll have to go to some “file recovery” forum or something similar, because recovering files from one crashed computer to put onto another computer is not our area of expertise, and is off-topic for Notepad++ discussions.
Sorry.