We have found one software suitable in our database for this conversion.
If any program would be somehow capable of converting or recovering data from .spo files to .spv files (statistics outputs), it would SPSS statistics software for statistical analysis.
SPSS formats are closed, so it is not likely that some 3rd party software could work with output files.
Updated: February 21, 2017
A family of statistical and analytical software currently sold by IBM, with latest version released in 2015. It is used for improve business processes by directing, optimizing, and automating decisions made throughout an organization.
It comes in three bundles that offer certain combination of SPSS programs.