.OMU File

The omu file extension is associated with the XWE (eXtendable Wad Editor), a lump editor capable of managing the lumps of Doom WAD files for Microsoft Windows operating system.

The omu file stores some kind of data used by XWE.

How to open:

Probably not meant to be accessed by the user.

How to convert:

There is probably no real way how you can convert this particular file type to anything else.