Although you might think you should have experience with as many tools as possible to ace this question, this is not the case. Each company uses specific data analysis tools, so it’s normal that your expertise is limited to those. Of course, if you have worked for a large number of companies, you’re bound to have exposure to a wider variety of analytical software. That said, the interviewer would like to know which tools you feel comfortable with, rather than the number of tools you’ve utilized.

Example
“When it comes to data analysis tools, I can say I’m a traditionalist. That’s why, I find Microsoft Excel and Microsoft Access most useful. I feel truly comfortable working with those, and they’re available in almost every company out there. Moreover, you can achieve great results with them with the right training.”