co authoring excel sharepoint 2010 / SharePoint 2013

TechNet article provides guidance for administrators to configure co-authoring for their organization. Many of these are using Windows PowerShell cmdlets.

• Configure versioning for co-authoring (SharePoint Server 2010) - When multiple authors work on the same document, edits are retained on the server as document versions. This article describes how to configure document library versioning settings for co-authoring.
• Configure the co-authoring versioning period (SharePoint Server 2010) - When versioning is turned on, SharePoint Server takes periodic snapshots of documents, saving them for later reference. This article describes how to configure the co-authoring versioning period.
• Configure the maximum number of co-authoring authors (SharePoint Server 2010) - Administrators can limit the maximum number of authors that can co-author a document at the same time. This article describes how to configure the maximum number of co-authoring authors
• Disable co-authoring (SharePoint Server 2010) - Co-authoring can also be disabled on the client side using Group Policy. This article describes how to disable co-authoring
• Co-authoring functionality in SharePointAll_2nd_CurrentVer and SharePoint Online
  
• Understanding the end-user experience of co-authoring in SharePoint 2013 and SharePoint Online
  
• Important planning considerations for co-authoring in SharePoint 2013 and SharePoint Online
  
• Planning considerations for co-authoring in OneNote notebooks
  
• Software version requirements for co-authoring in SharePoint 2013 and SharePoint Online
  
• Co-Authoring in a mixed Office environment
  
• Performance and scalability considerations for co-authoring in SharePoint 2013 and SharePoint Online