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Thanks to Dan Parish for writing this blog post. post, I’m going to delve into some of the finer details of collaboration using Excel Web App. If you haven’t already read Collaborative Editing Using Excel Web App however, please start there. It goes over what is supported, how it works, our presence UI, as well as some interesting collaborative scenarios that this feature opens up. Today’s post is really a “Part II” to that post.
Browser Windows Web App allows you to collaborate with yourself, so if you forget to close a browser window while editing a workbook at work, you can still continue editing that workbook at home. To let you know if a user has multiple windows open and editing the same workbook,office pro 2010 32 bit key, we display a notification icon in the presence UI with a tooltip that appears when you hover over it:
with Excel Services’ Web Service API Services (which ships as part of SharePoint Server) allows you to build programmatic solutions using its Web Service API that can also edit workbooks. When Excel Services and Excel Web App are installed together, users will be able to edit a workbook through Excel Web App at the same time as that workbook is being editing with Excel Services programmatic solutions. If you are editing a workbook in Excel Web App that is also being edited by a programmatic solution, you will see the name of the person that is running the programmatic solution along with a notification icon in the presence UI with a tooltip that appears when you hover over it:
editing, saving, and SharePoint audit logs you edit a workbook in Excel Web App, your changes are automatically saved back to SharePoint while you edit. When you are editing alone, your changes are always saved as ‘you’, so you will show up as the person that modified that workbook in SharePoint. When multiple people are editing a workbook simultaneously however, the workbook needs to be saved as someone. So, when editing collaboratively Excel Web App will always save the changes as the last user to join the editing session. SharePoint can also be setup to keep audit logs of all of the changes on the SharePoint system. This allows administrators to track when files were created, updated, deleted,buy microsoft windows 7 cd key, etc. and by whom. The ‘by whom’ piece is very important since if an important workbook is modified in a way not allowed by corporate compliance strategies the person that made that change will need to be questioned. workbooks that are being modified by multiple people at the same time then presents an interesting challenge: how does the administrator find out who made a given change if multiple people were editing at the same time, and if the workbook was saved out as only the last person that joined the editing session? To solve this problem Excel Web App writes all of the users in an editing session to the audit log whenever it saves a workbook with multiple users in it. If a workbook subsequently needs its changes audited,office Home And Student 2010 generator, administrators can check the audit log to see who was actually editing the workbook at any given time. of collaborative editing in the Excel client Excel client does not support collaborative editing with Excel Web App. Excel does support something similar, called Shared Workbooks, which allows multiple users using Excel to edit a shared workbook simultaneously,microsoft office Professional 2007 license, but it does not support the real-time collaboration of workbooks in SharePoint or Windows Live that Excel Web App supports. As a result, if you must edit a workbook simultaneously in Excel and Excel Web App, the user in Excel will be ‘locked out’ and will have to work on a read-only copy and merge in their changes at a later time. of this limitation, the ‘Open in Excel’ button on the ribbon in Excel Web App will show an error if it is clicked while you are collaborating:

Undo/Redo Web App supports undo and redo just like you would expect it to work from your experience in the Excel client. However, in order to prevent confusion across a collaborative editing session, Undo/Redo is disabled while you are collaborating. If you click Undo or Redo while collaborating,microsoft office 2010 Home And Student, you will see the following error:
workbooks with external data or User Defined Functions (UDFs) that return personal information security and privacy reasons, workbooks with external data connections and workbooks with UDFs that return personal information (that have [UdfMethod(ReturnsPersonalInformation = true)] as a property) must be checked out in SharePoint before they can be edited in Excel Web App. If a user tries to edit one of these workbooks without first checking it out, they will see the following error:
concern is that through either of these mechanisms a user could expose private data to other users unknowingly or unwillingly. When a workbook is checked out, it cannot be collaborated on and its editing session is therefore private, which ensures the security and privacy of a user’s data. hope that this post gives you a little bit more insight into how collaboration works in Excel Web App, and shows you some of the types of scenarios it can enable. If you have any questions and/or comments, please post them in the comments section. <div