Woodworking plans are usually .pdf files. To save a pdf file from your web browser: press Alt + f (together like); then select ‘Save As’.
If you can’t view a pdf file on your drive, download a free pdf reader like Adobe Acrobat Reader.
If you need help opening the plans, reply to the email that I sent you and I will try to help you out with it.
Please, keep safety in mind when using the plans.