So school's out for a month and Ive been doing some hobby VB6 programming...

Im writing calculators involving up to 25 variables, many constants, etc, etc, etc..

So, instead of requiring the user to input all the vars I thought I'd allow the loading of comma- or tab-delineated textfiles with appropriate values already there for particular cases.

For instance, to calculate the concentration of an organic acid in equilibrium with X other species in solution of X unknowns at, say, standard temp and pressure; all the user would have to do is load that file and input one or two values. Additionally, I would like to allow for saiving the file if the user wanted to change the inputs for compund- or solution-specific, non-ideal conditions...

So can you all recommend a simple tutorial that will discuss the process of how to load/save the files?

TIA!
-gkd