There is a lot on this thread about Excel vs Access but no one has talked about the information.
Being a computer consultant, the first thing to ask is what is the ultimate goal for the data? How will the data be used? How is it used now and what are the limitations that may require a change? Etc...etc...
I don't think you can decide if Excel or Access is the best fit without knowing the answers to some of these types of questions! I have programmed both and each have their advantages and disadvantages. Personally I prefer Excel for the limited amount of data that is being discussed but again it would depend on the use of the data.
Good luck.