"Class ZipArchive does not installed. Cannot unzip the file."

[MiJo16CDAT]

I got this message when I tried to upgrade from 3.4.2 to 3.5,(planning on upgrading all the way to 3.6), but I'm not sure what this means. Am I supposed to install ZipArchive, and if so where do I install it to. Also, it should read "Class ZipArchive is not installed. Cannot unzip the file."

[yuri]

Contact your hosting provider to install ZipArchive.

[MiJo16CDAT]

Thank you!