Certain embodiments of the present invention provide an archive management application that operates within a host application to provide access to an archive and/or allow access to and/or modification of files in an archive using the host application's interface, instead of operating as a separate standalone archive management application. In an embodiment of the present invention, a file archiving system may include a user interface component, a file management component and a compression/extraction engine component. The user interface component may include an enhanced user interface of a host application that provides an interface for a user. The file management component may include a central directory that provides a representation of the contents of an archive. The compression/extraction engine component may include a file size module and/or a security module. The file size module may be used to compress and/or decompress a file in an archive. The security module may be used to encrypt, decrypt, digitally sign and/or authenticate a file in an archive.