Ran the above and it couldn't find any "haven" command.

`Command 'haven' not found, did you mean: command 'aven' from deb survex-aven (1.4.4-1build1) Try: sudo apt install `

So I ran what was listed on the GitHub instead; namely `./haven --import` and it gave me this:

`bash: ./haven: Is a directory`

Not sure what it doesn't like about it, but that command doesn't seem to work in either form.