A File Manager software tool is present in all hosting Control Panels. As the name implies, it is used to command the files inside an account and all File Managers support a number of standard capabilities - browsing, moving, copying and deleting files. Certain Control Panels can offer more advanced features too - changing file and folder permissions or creating and unpacking archives. Although files could be uploaded and downloaded using an FTP client, the File Manager is used far more often, so the easier to use it is, the easier it'll be for you to manage your online presence in its entirety. The opposite is also true - a File Manager that's not easy to use could make it more annoying and tough for you to control your website content, particularly if you don't have previous experience.