How can I import my date from 1password 6 to 1password mc 8.9.4?

Hey there @doorstriker

If you have any data in a Primary vault, then you'll need to go through 1Password 7 first:

If you’re using 1Password 6, you’ll need to upgrade to 1Password 7 and migrate your data to a 1Password account before you can upgrade to 1Password 8. Learn how to migrate your standalone vaults from 1Password 6 for Mac to a 1Password account.

— from the article, Upgrade to 1Password 8 for Mac, from the 1Password Support website

If you don't have a Primary vault, and you can see everything you're expecting when you sign in to 1Password.com, then you don't need to worry about exporting your data from 1Password 6 – everything will be re-downloaded from 1Password.com when you sign in to 1Password 8.

Let me know if you get stuck along either of those routes or if you have any questions. I look forward to hearing how you get on. :)

— Grey