What is Binary File?

Legal Definition
A binary file is a computer file that is not a text file. The term "binary file" is often used as a term meaning "non-text file". Many binary file formats contain parts that can be interpreted as text; for example, some computer document files containing formatted text, such as older Microsoft Word document files, contain the text of the document but also contain formatting information in binary form.
-- Wikipedia
Legal Definition
A file that has information in a computer readable form. The file can be displayed, read, or used.