To provide a file which allows crosscheck of documents on plane surface in the single file without extracting the documents from the file or using two files.

The file is equipped with a body of cover in which a first cover 1, a second cover 2 and a third cover 3 are connected; folded sections 5 mounted between each cover and; a means to compose file binding sections 8a and 8b which fix sheet components 6a and 6b such as a plurality of clear files, album boards and note paper sheets. In other words, it is equipped with a bound sheet component of two front covers, a back cover and two layered stacks of sheet components in the single file; wherein the second cover 2, corresponding a back cover, is positioned at the center, while on either side of it, a pair of the binding sections binding the front cover and the file, are placed.