What exactly are you looking for? Yahoo.com allows people to download daily, weekly or monthly price data in a csv format that may be opened as an Excel spreadsheet.
you would probably need some sort of API connection from your feed to the spreadsheet?...not sure..but I think to work with "real time" data you would need some sort of front end
Stsslick, Majority of quote vendors/feeds have this facility - it's standard. Or are you looking for a free service? Grant.
Stsslick, There isn't a "best" - it's a standard feature. The only variation is what data is available from the various feeds - some provide more than others. Grant.
I would imagine that most data vendors do offer the ability to link real-time data to an Excel spreadsheet. I have created spreadsheets that are linked to my trading platform using real-time quotes and then I can sort by various choices. I copied a list of ETFs (over 200) from finance.Yahoo.com and I can see which ones are moving on a percentage basis in real-time. Yahoo is delayed data. I can do the same thing for futures to look for high volume situations real-time in Excel.