I have a handful of PowerShell scripts that ran as Scheduled Tasks on an old Windows 2008 SP2 server, which output reports as Excel workbooks with multiple worksheets, via a COM object. After migrating these scripts to a new Windows 2012 R2 server, these scripts no longer function. The Server 2008 system was running Office 2007, and the new Server 2012 R2 server has Office 2013 installed.
What is everyone using on their Server 2012 R2 systems to automate generation of multi-sheet reports in Excel via PowerShell and Scheduled Tasks?
I know that Microsoft has said that automating Office applications server-side in non-interactive mode, but it has worked in the past, until now. (https://support.microsoft.com/kb/257757)
I've tried the OpenXML PowerTools for PowerShell (https://powertools.codeplex.com/), but Export-OpenXMLSpreadsheet will only export a single worksheet, and they don't support adding worksheets to existing files (am I missing something?). I understand the OpenXML PowerTools can be extended in C#, but I don't C#. The PowerShell cmdlets were released in Jan 2012, but don't look to have been updated since then (updates have been the core C# code).
I've seen recommendations to add C:\Windows\(System32 or SysWOW64)\config\systemprofile\Desktop, but this hasn't worked on Server 2012.
Has anyone been able to get Excel 2013 to cooperate on Server 2012 R2, or come up with a suitable alternative? I'd rather not start running these scripts from my workstation.