Data file used with SignPlot software
SP is a file extension for a data file used with SignPlot software. SP files contain vector graphics and text used for designing and printing traffic signs in the United Kingdom. SP files are used to automate the layout and spacing rules in accordance with United Kingdom Traffic Signs Regulations. SP files can be opened and edited by SignPlot software.
The SP file extension is also used with compressed archive files used by Sprint.
Learn more about .SP files:
Visit the Buchanan Computing Signplot web page
Find out more about Images at ITKnowledgeExchange.com.