Abstract: A binder made of a rigid covering case and containing an assemblage of envelopes constitutes a diskette file. The diskette file provides a secure receptacle suitable for storage of 10, 20, or any number of magnetic diskettes used on microcomputers. When the binder is open, an accordion-like assemblage of envelopes structure expands to form a fan of the diskettes stored in the envelopes. The top of each diskette in the fan of the open binder is revealed and a single diskette can be located and retrieved without having to manipulate any of the other diskettes in the file. The assemblage of envelopes is bound to the covering case. The case consists of 5 coupled and hinged sections; front, bottom, back, top and flap. The flap folds over and attaches to the front panel. When such a binder is closed, the book-like diskette file may contain a large number of diskettes in a well-protected, organized filing pattern suitable for cataloguing and storage in library book-shelf fashion.