Expanding files, also known as accordion files, have an accordion design that allows them to expand and fit more paper than initially expected. They are used for simple and easy paper organization and can be designed as inserts or file folders with multiple pockets for additional organization.
Expanding files are types of file systems or folders that can be expanded to fit additional sheets of paper. These files are often quite narrow at first appearance, but utilize an accordion design that allows them to expand as needed to allow for more paper than it initially appears capable of fitting. This allows these files to easily fit into a relatively small area and keep files together in a simple way. Expanding files can also easily work over a larger area, expanding and allowing additional paper to be filed in them on a larger system.
Also called accordion files, expanding files are usually used to organize papers in a simple and easy way to expand. The basic design is similar to other filing folders and files, with a front and back, two closed sides and a bottom. These files have an open top, which allows you to insert sheets of paper or booklets into the file. Sometimes the top parts of these files can be closed via an opening and closing flap, although this depends on individual projects.
Expanding files are different from other files, however, in the way the closed sides of the files are designed. Instead of a flat, straight piece of paper or card, an accordion design is used that features a single sheet of paper or plastic folded over on itself repeatedly. This allows the sides of expanding files to expand and contract as the folds are opened or refolded. These files can easily fit on a handful of sheets of paper, closing neatly to keep them together, giving the user the ability to expand the file and keep tens or hundreds of sheets of paper together.
There are several ways in which expanding files can be designed, although they are typically designed to be used as inserts or file folders. File inserts usually do not have any kind of top and are often part of a larger filing system; they can include tabs on the sides to fit on slide rails inside a file cabinet. Folder expansion files are usually designed with a lid that can be folded back to keep the file open or closed with a loop or other system to keep them closed. Some of these files are also designed with multiple inserts that separate the larger file into multiple smaller pockets for additional organization.
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