3D objects stored as .ply files (polygon data) can be probably exported and saved in other 3D modling / mesh formats including VRML format (.vrml, .wrl etc.). This can be done using several 3D modeling / CAD programs or dedicated converters.
Convert Polygon graphics to VRML Worlds 3D graphics.
We have found 4 software records in our database eligible for .ply to .wrl file format conversion.
Microsoft Windows software - convert ply to wrl on Windows
A very popular free program used for work with 3D graphics
Convert from ply file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned ply to wrl. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A 3D CAD translation softwate
Apple macOS / Mac OS X software - convert ply to wrl on OS X
The Mac version of popular free 3D graphics software
Linux/Unix software - convert ply to wrl on Linux
Easy-to-use 3D modeling utility