MVB refers to a file created using Microsoft Viewer Book. This particular file is able to store audio and video clips. Similar files are also associated with Manual Storage Format which also handles video and sound storage. MVB files are those with .MVB extensions and they typically need the appropriate viewing software in order to open them or view the video inside them.

Most people are not familiar with files that contain the .MVB extension. Many users often encounter MVB files when their computer or mobile gadget is unable to open this particular file. Whenever a video file is being shared by a friend for example, opening it may not be automatic for some computers. In many cases, double-clicking on the MVB file is all it takes to view its video and audio content. In these situations, the computer will automatically detect the MVB file and find the appropriate viewing software for it. In case the computer does not find any compatible software that can open this particular video file, it will usually prompt the user to locate a particular program to handle the file-opening task. For most users, this is the time when they get to see MVB files and most of the time many would not know what to do about it or which program to choose in order to open the file contents. If the computer has pre-installed video handling programs, it may choose any one of these programs to open the MVB file. If there are no video programs or software available, users may need to coordinate with experts in order to open the video file.

To avoid file-opening errors associated with MVB files, many experts often suggest converting these files into other formats like AVI files. AVI files are more or less generic in terms of video and sound content and most software installed in people’s computers are able to open and handle AVI files. The only concern for conversion to AVI from MVB file is that users need to download another program to have this task completed. Otherwise, one may need to have his/her MVB file converted by the experts.