.LTF

.LTF file extension

This is the basic program to work with .LTF extension

LINGO

LINGOLINGO Document

LINGO is a comprehensive tool designed to build and solve linear, nonlinear, and integer optimization models. The program provides a completely integrated package that includes a powerful language for expressing optimization models, a full-featured environment for building and editing problems, and a set of fast built-in solvers... (more)

The program works with the following extensions: ltf, lng, ldt, ltx and lrp