Expandable folder

An expandable folder, comprising:

• a single, integral material including;
• a back having a lower edge, an upper edge, and first and second side edges, the lower and upper edges being parallel and the first and second side edges being parallel, the back having a width defined between said first and second side edges;
• first side connected to the first side edge of said back by a first expanding side section having only first, second and third side fold lines, the first side defining an upper edge forming a continuation of and parallel to the upper edge of the back, a lower edge forming a continuation of and parallel to the lower edge of the back and a side edge extending generally perpendicular to the upper and lower edges of the first side;
• second side connected to the second side edge of said back by a second expanding side section having only first, second and third side fold lines, the second side defining an upper edge forming a continuation of and parallel to the upper edge of the back, a lower edge forming a continuation of and parallel to the lower edge of the back and a side edge extending generally perpendicular to the upper and lower edges of the second side;
• a front connected to the lower edge of said back by an expanding bottom section including only first, second and third lower fold lines, the front having a cover portion and a foldover portion, the cover portion and foldover portion having first and second side edges forming a continuation of and parallel to the first and second side edges of the back, respectively;
• a flap connected to said upper edge of said back by an expanding top section including only first, second, third and fourth upper fold lines, the expanding top section having first and second side edges forming a continuation of the first and second side edges of the back, respectively, the flap having first and second edges tapering from the expanding top section to an end of width less than the width of the back, the portion of the expanding top section between the second and third fold lines remaining generally perpendicular the front and back as the folder is expanded such that a label on said portion remains readable from the top of the folder;
• the foldover portion of said front having a first tab and a second tab, the first side having a single slot to receive said first tab, the second side having a single slot to receive said second tab, the cover portion of said front having a slot for receiving the end of said flap, the foldover portion having a width corresponding to the width of the back and the foldover portion folded over the upper edges of the first and second sides and positioned between the back and the first and second sides with the first and second tabs received in the slots in the first and second sides with no portion of the first and second tabs and slots exposed, wherein the first and second tabs have an end, the ends received in the slots of the first and second sides with the ends between the first and second sides and the front to prevent objects in the folder from inadvertently contacting the ends to force the ends out of the slots, the first and second tabs fixed within the slots of the first and second sides as the folder expands as the cover portion and foldover portion of the front are folded over the upper edges of the first and second sides, wherein the foldover portion covers the slot in the cover portion preventing the flap from contacting objects in the folder as the flap is inserted into the slot, no glue or fastener being used to form the folder.