I think that a file extension is the extending of a file into the Internet.
I think that .doc is a Word Document,
.psd is a Photoshop File,
.ai is an Illustrator File,
and .jpg is a Photo File.
I think that a file extension is the extending of a file into the Internet.
I think that .doc is a Word Document,
.psd is a Photoshop File,
.ai is an Illustrator File,
and .jpg is a Photo File.