.BBLM File Extension
File TypeBBEdit Language Module
What is a BBLM file?
Plug-in file used by BBEdit, a source code development tool for Mac OS X; contains a language module, which provides syntax highlighting for a particular programming language; may be a third-party module or a module included with the software.
BBEdit includes several language modules in the application bundle within the /Contents/Language Modules/ directory. Other language modules can be developed using the BBEdit SDK.
NOTE: Language module files are also used by Bare Bones Software's TextWrangler text editor.