This solution is an extension for impulse 1 (legacy).
impulse 2 is available here.
SPICE (Simulation Program with Integrated Circuit Emphasis) characterizes a group of electronic circuit simulator software packags. Originally the name comes from Berkeley SPICE:"SPICE is a general-purpose circuit simulation program for nonlinear dc, nonlinear transient, and linear ac analyses. Circuits may contain resistors, capacitors, inductors, mutual inductors, independent voltage and current sources, four types of dependent sources, lossless and lossy transmission lines (two separate implementations), switches, uniform distributed RC lines, and the five most common semiconductor devices: diodes, BJTs, JFETs, MESFETs, and MOSFETs. SPICE originates from the EECS Department of the University of California at Berkeley."
impulse is a powerful waveform viewer and analyser tool, helping engineers to comfortably understand and debug complex semiconductor and multi-core software systems.
There are a number of SPICE related file formats supported with this extension this extension to read, display and analyze the simulation output. HSpice and Spice3 are supported natively, wheras NanoSim needs an external conversion tool