I'm not a huge fan of Sharepoint, but I'm pretty sure you can do some basic at least view of Excel files in Sharepoint. Alternatively, you can share the documen

I'm not a huge fan of Sharepoint, but I'm pretty sure you can do some basic at least view of Excel files in Sharepoint. Alternatively, you can share the documents out with a read/write lock. I'm not aware of any other products that support it. You could try out this Stack Exchange answer: http://webapps.stackexchange.com/questions/16072/web-based-office-suite-not-in-the-cloud http://webapps.stackexchange.com/questions/16072/web-based-o...