So I put in my sd card that has a video on it and it doesn’t play videos just pics so I need to install something

so I guess there’s a video on my Toshiba SD card I put it in my Mac. It shows up and shows pictures which the pictures look like their video pictures. Is there something I need to install to watch a blvideo from my Mac? Through sd card Toshiba 2.0. Cause I don’t know much about these just learning so much **** it gets fun