I have software which allows me to link my quote platform streaming data and excel via a dde link so I have streaming quotes in a spreadsheet. Does anyone know if excel has the ability to dump all this streaming data into another program?
Depends on the other program and how it accepts the data you're trying to "dump" - which one did you have in mind? You can write VBA routines and can use COM objects to do a lot of different things, but be aware that Excel is fundamentally a spreadsheet program with scripting capabilities, it wasn't designed for extensive realtime functionality or to be used as a substitute for a data transfer gateway - so don't expect to be able to pump hundreds of symbols worth of tick data through it efficiently.