License

You may

Use the files for your own personal, family, classroom or business use.

Print as many copies as you need for your own household, your own students or your own clients.

Adapt the editable templates with your own wording, branding and numbers.

You may not

Resell, sublicense, share or give away the files, in whole or in part.

Repackage the content into another product, bundle or membership, paid or free.

Upload the files to a public site, drive or group where anyone can download them.

Claim authorship of the original material.

In short

Buy it once and use it as much as you like in your own work. Just do not sell it on, and do not hand out copies to people who have not bought it.