The Social Skills Guidebook by Chris MacLeod.pdf

A document file format is a text or binary file format for storing documents on a storage media. The default binary file format used by Microsoft Word (.doc) has become widespread de facto standard for office documents, but it is a proprietary format and is not always fully supported by other word processors while Page description languages such as PostScript and PDF have become the de facto standard for documents that a typical user should only be able to create and read, not edit.