.SP

.SP file extension

This is the basic program to work with .SP extension

SiteInFile Compiler

SiteInFile CompilerSiteInfile Project File

SiteInFile Compiler is an extraordinary and helpful software tool whose main functionality is allowing you to pack and compress different kinds of media into one single and very secure executable file, which may include a built-in browser for you to view its contents... (more)

The program works with the following extensions: sp

.SP extension is also supported by the following programs:

LTspice IV

LTspice IVLTspice SpiceNetlist

LTspice IV - a high performance simulator, schematic capture and waveform viewer.
Tanner T-Spice

Tanner T-SpiceT-Spice Document

Scriptius

ScriptiusSP file

Scriptius is designed for users who want to successfully automate operations.