Limit Excerpts size in FrameMarket GridMarket theme

Hello,

Im using latest version of FrameMarket GridMarket theme and Market Press plugin. I have excerpts activated on my site and it automatically adds excerpts to the main page and each category. See my test site (frenib.com) The only problem is that these excerpts are pretty long.

I know there is a option to manually enter excerpts into each post to customize each excerpt which is a great feature. However, if you have 1000+ products to list it starts to get pretty burdensome fast.

No since there is an automatic display of excerpts already integrated into the FrameMarket GridMarket theme, Is there a way to limit the automatic excerpts in size? Say to 6 or 10 words maximum?

Thank you