Finding value(calculation) of calculated variable

I'm new to SPSS so please be gentle.
I have added a second data set to a set originally set up by someone else. The data includes multiple psychometric tests so calculate variable was used for scoring. This has not calculated the new data rows added automatically so I believe I have to set up a new variable to include ensure the new data is calculated. Is there a way to see what the calculations were in the previous variables set up to score the data? Hop this makes sense???