I've been writing data-analysis tools using VBA to handle projects at work, but the data sizes keep getting bigger. I feel that it's about time to get C++ programs involved to speed up processes. But I've never done this before. So, I was wondering if anyone here can give me some hints. How can I integrate C++, VBA, Excel, and even Access together? What platform/interface would I need to get? Any idea would be greatly appreciated.