There is only one file type that uses the .LUF extension:
Lipikar Uniform Format File
Rich text (.RTF) file saved by Lipikar, a multi-language desktop authoring tool for Windows fonts; created when the contents of the Lipikar text box are saved to a file.
Text saved in an LUF file conforms to the limitations of the text box. All text is formatted with a single font, color, style, and effect.
Updated: August 24, 2007