Types/OpenPackage/set_ContentType.ps1

<#
.SYNOPSIS
    Sets OpenPackage `ContentType`
.DESCRIPTION
    Sets the OpenPackage `ContentType` property.
.LINK
    https://learn.microsoft.com/en-us/dotnet/api/system.io.packaging.packageproperties.contenttype?wt.mc_id=MVP_321542
#>

param([string]$ContentType)

$this.PackageProperties.ContentType = $ContentType