How to find the version or build number for an Office Web Apps 2013 Farm

There are multiple ways to find the OWA 2013 patch or build level:

Use PowerShell

  • Check the X-OfficeVersion header value, on an Office Web Apps (OWA) or SharePoint server, replace the highlighted owa01 in red with your owa server url and run

(Invoke-WebRequesthttp://owa01/op/servicebusy.htm).Headers

  • On Office Web Apps server

Get-Content "C:\ProgramData\Microsoft\OfficeWebApps\Data\local\OfficeVersion.inc"

On an Office Web Apps Server, check the OfficeVersion.inc file located here

C:\ProgramData\Microsoft\OfficeWebApps\Data\local\OfficeVersion.inc

 You can also check the X-OfficeVersion header value right from the browser. Please head over to my colleague Tom's blog post here.