You're here because you have a file that has a file extension ending in .aifb. Files with the file extension .aifb can only be launched by certain applications. It's possible that .aifb files are data files rather than documents or media, which means they're not meant to be viewed at all.

AIF Builder project files are appended with the .aifb extension, and these AIFB files are classified as data files because it contains data entered by the user that will be accessed as reference data by the program used to view the content of a project output file associated to these AIFB files. The AIF Builder software is a program that can be installed in Microsoft Windows-based systems to implement support for these AIFB files. Microsoft Windows users can begin to use the Symbian AIF Builder program, and upon saving a project using this software, an AIFB file will be automatically created by the application and associated to the project. There are features integrated into this application that can also be used to edit the content of an AIFB file. The Symbian AIF Builder software was developed by Symbian as an application that can be used to develop applications for the Symbian mobile OS, and the content of these AIFB files include details referenced by this application and the Symbian software itself that was developed using this program, and these AIFB files can also be attached with TXT files that contain directory locations of the Java Virtual Machine in instances when Symbian AIF Builder software users create a mobile Java application using this program.

Launch a .aifb file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that's meant to open your .aifb file will open it. It's possible you may need to download or purchase the correct application. It's also possible that you have the correct application on your PC, but .aifb files aren't yet associated with it. In this case, when you try to open a .aifb file, you can tell Windows which application is the correct one for that file. From then on, opening a  .aifb file will open the correct application. Click here to fix .aifb file association errors

Be careful not to rename the extension on .aifb files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another.

A file extension is the set of three or four characters at the end of a filename; in this case, .aifb. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.