How do I install an update with the zip file

I just received an update to my Newspaper theme, themeforest-5489609-newspaper.zip, but I don’t know how to install it. I have the email with the download instructions but no info on how to do the install after I have the download the file.

I know this is months after your post and it looks like no one has replied so I hope you figured it out.

But I was having the same issue and went to Google for help since the forums didn’t offer anything. I’m leaving what I found here because it was very helpful. I hope that anyone else who has the same problems and searches through the forums can use this as their answer.

https://premium.wpmudev.org/blog/how-to-update-themeforest-themes-with-the-envato-wordpress-toolkit/