[MS-OWEXTSP]: Office Web Extensibility SharePoint Protocol https://docs.microsoft.com/en-us/openspecs/sharepoint_protocols/MS-OWEXTSP/907e6e3e-a67d-40f0-b414-d2486d2bd850 Specifies messages between client applications and SharePoint Server that supports Office Extensibility scenarios. Major Update for [MS-OWEXTSP] (Version 4.0) https://docs.microsoft.com/en-us/openspecs/sharepoint_protocols/MS-OWEXTSP/907e6e3e-a67d-40f0-b414-d2486d2bd850 <b>Protocol Revision:</b> 4.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OWEXTSP/[MS-OWEXTSP].pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OWEXTSP/[MS-OWEXTSP]-240820.docx">DOCX</a></li></ul> Tue, 20 Aug 2024 MS-OWEXTSP-20240820 Major Update for [MS-OWEXTSP] (Version 3.0) https://docs.microsoft.com/en-us/openspecs/sharepoint_protocols/MS-OWEXTSP/907e6e3e-a67d-40f0-b414-d2486d2bd850 <b>Protocol Revision:</b> 3.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OWEXTSP/[MS-OWEXTSP]-240416.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OWEXTSP/[MS-OWEXTSP]-240416.docx">DOCX</a></li></ul> Tue, 16 Apr 2024 MS-OWEXTSP-20240416 Major Update for [MS-OWEXTSP] (Version 2.0) https://docs.microsoft.com/en-us/openspecs/sharepoint_protocols/MS-OWEXTSP/907e6e3e-a67d-40f0-b414-d2486d2bd850 <b>Protocol Revision:</b> 2.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OWEXTSP/[MS-OWEXTSP]-220215.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OWEXTSP/[MS-OWEXTSP]-220215.docx">DOCX</a></li></ul> Tue, 15 Feb 2022 MS-OWEXTSP-20220215 Initial Release for [MS-OWEXTSP] (Version 1.0) https://docs.microsoft.com/en-us/openspecs/sharepoint_protocols/MS-OWEXTSP/907e6e3e-a67d-40f0-b414-d2486d2bd850 <b>Protocol Revision:</b> 1.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OWEXTSP/[MS-OWEXTSP]-211116.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OWEXTSP/[MS-OWEXTSP]-211116.docx">DOCX</a></li></ul> Tue, 16 Nov 2021 MS-OWEXTSP-20211116