I think that what you're really wanting to save is the experimental data and the corresponding parameters. There are a number of ways to do this. One way that I often use is to format the information into a spreadsheet string and save it to an ASCII file. As long as the format of the spreadsheet string is known you can write a reader to recover the data in your analysis program. This approach has the advantage that the data can readily be imported into other software packages as well. Without knowing more about your particular experiment it is difficult to say whether this approach is suitable or another approach is more appropriate.
