TSPLIB is a text-based file format for storing graphs which is used in studying instances of the Traveling Salesman Problem and related problems.

The format consists of a sequence of node definitions, followed by a list of edges, which specify node pairs and an optional edge label.

The GraphTheory[ImportGraph] command can read from this format.

The general-purpose Import command supports this format.

The TSPLIB (.tsp) Format command was introduced in Maple 2019.

For more information on Maple 2019 changes, see Updates in Maple 2019.