|Yes and No.|
When you do a "print screen" you make whats currently on your computer a static image, A screen shot is normally what its called (a picture). The data can be edited by photoshop or MSPaint or any other photo editing software you have. You can even use word. But when you edit it, you are just editing the picture not the data inside the picture.
What I recommend you do is copy the data then paste it into a place where you can edit it. You can click and drag to select the data you want to copy or use the shortcuts below:
Ctrl+A = select all
Ctrl+C = Copy selected data
Ctrl+V = Paste selected data (make sure you have word open or wherever else you want to paste.