QuickReport Viewer is a QRP file viewer.
There are rather few files which are created with a specific parameter that enables them to be opened only with the application that created them. Fortunately, there are rather few of those applications around as making something like that, brings stupidity on a whole new level. One of such file formats is the QRP format, and unless you have something as good as QuickReport Viewer, you are in trouble.
QuickReport Viewer will enable you to open all QRP files without the need to have the program like QRP around yet still use all that data stored in that way. Now that these files are completely readable you can distribute them, open them modify them and perform all those operations you would on a normal file format.