How do you crop a Texture2d

Hi, how would I crop a Texture2d, for example I have a 400 x 300 texture and i would like it to be 300 x 300, how would i chop off 100 pixels from the width?

thanks

look up directions on how to use unity’s Sprite sheet editor. its good to know. its a tool built in to unity to assign portions of image files/textures.