An XML resource file is a file whose extension is .resx and whose BuildAction property is set to Embedded Resource. Such XML files must follow a specific schema understood by the ResXToResources conversion tool. With this tool, XML resource files are transformed into binary large objects (BLOBs) prior to inclusion in the assembly manifest.
The following is the file naming convention for such resources:
base_filename[.optional RFC 1766 culture info string].resx
Aside from file system limitations, there are no restrictions on base_filename or the optional RFC 1766 culture info string. Examples of valid XML resource file names include: