This web2all/file package requires the web2all/framework (https://github.com/web2all/framework). It used to be proprietary software but now it has been released to the public domain under a MIT license.
This pacckage is no longer actively maintained. Most likely it is only of interest if you own software created by Web2All B.V. which was built using these classes.
Filesystem abstraction layer. Exposes methods to manipulate files/directories on a filesystem. Includes drivers for unix filesystem and ftp filesystem.
When using the ftp filesystem the Pear Net_FTP package (https://pear.php.net/package/Net_FTP) is also needed.
Web2All framework is open-sourced software licensed under the MIT license (https://opensource.org/licenses/MIT).