How to fill an existing window?

[angelaucd]

Hi I’m new to the community. We have two windows in our garage that are not in a great place. We are wondering if we can fill them in without having to use brick. Does anyone have any suggestions or instructions on how we can do this? 

 

[Nailbag]

You're very welcome @angelaucd glad to be of help. 

Regards Nailbag