An XPLL file is a data file created by Pull-Planner, a program used to calculate cable pulling tension and sidewall pressure for designing conduit systems and planning cable pulls. It contains cable and conduit data, data calculations, and a summary for the cable and conduits.

American Polywater specializes in manufacturing cable pulling lubes, cleaners, sealants, and construction chemicals for use in the electrical wiring of buildings or railways. Pull-Planner is software developed by American Polywater to calculate tension estimates to aid in the designing of conduit systems planning of cable pulls. The planning can help save time and money by reducing vaults, pulling set-ups, and splices. This ensures that installation tensions won't damage cable.