Both .por and .sav files are data sets from SPSS, so it's fair to assume some kind of export or resave of the data is possible. We have not found any 3rd party converter suitable for por to sav conversion, but it is likely this can be done simply by resaving the content with SPSS.
3rd party tools that work with SPSS or are based on the solution often offer various converters, so if you are using one of these solutions, contacting the provider or their support might be best option if you struggle with the export.
Updated: October 27, 2023