.SPO

.SPO file extension

This is the basic program to work with .SPO extension

SPSS

SPSS SPSS Viewer Document

Statistical Product and Service Solutions is among the most widely used program for statistical analysis in social science. It is used by market researchers, health researchers, survey companies, government, education researchers, marketing organizations and others to forecast future trends to better plan organizational strategies... (more)

The program works with the following extensions: sav, spo, sps, spv, wwd, spj and sbs

.SPO extension is also supported by the following program:

SynchPst for Outlook

SynchPst for Outlook Synchronize your Outlook

Allows you to synchronize Outlook data between personal folders.