Filing unit, preferably made from acid-free materials; titles of file folders are listed in the box inventory in a FINDING AID. The use of parentheses with a number and a lower case f at the end of a folder entry, e.g. (5f), indicates that there are multiple file folders with the same title.
In Microsoft Windows, file folders are used to organize materials. When writing a report for a class, make a file folder and store all course materials in one place on the computer for easy access. There are also file folders that contain computer programs or graphics (pictures).
A file folder is a kind of folder that holds loose papers together for organization and protection. File folders are usually made of a sheet of heavy paper stock or other thin, but stiff, material that is folded in half. They are often used in conjunction with a filing cabinet for storage.