Abstract: The present invention provides an expandable file folder with separate cases, which has a case placed in the middle of the folder, and which, as a result, has little steadiness and tends to fall down. The first and second cases between the front and rear sides of the expandable storing part are set such that the file holder can be more steady in a standing position. Two separated supporting areas form beneath the two cases. Thus the folder, when placed, will not tend to fall down.

Abstract: The combined hanging file folder structure includes a primary file cassette and at least one secondary file cassette. Each cassette contains a storage space, and an extension portion at a top of the storage space. A positioning portion is placed at the end of extension portion of the secondary file cassette. This positioning portion mates with a positioning portion at a back of the primary file cassette, forming an integrated structure of primary and secondary file cassettes. Furthermore, a positioning portion is placed at a lower part of the back of the secondary file cassette, allowing to mate with the positioning portion of another extension portion and leading to an expanded combination of secondary file cassettes.

Abstract: The present invention provides an expandable file folder with separate cases, which has a case placed in the middle of the folder, and which, as a result, has little steadiness and tends to fall down. The first and second cases between the front and rear sides of the expandable storing part are set such that the file holder can be more steady in a standing position. Two separated supporting areas form beneath the two cases. Thus the folder, when placed, will not tend to fall down.