To open a WRL file, use a program such as XnView, 3Shape 3D Viewer or Right Hemisphere DeepPublish Plugin. Each of these programs can open and convert WRL files.
WRL files are typically associated with the Virtual Reality Modeling language and need a special program to open them. This type of file contains virtual worlds with colors, shapes and other objects and are saved in the ASCII format.
If one of the above programs is hard to find or does not work correctly, universal file viewers are available that might be able to help. Free File Viewer is one well-known file viewer that may open this type of file.