ImportExcel/ExportedCommands/Close-ExcelPackage.ps1

function Close-ExcelPackage {
    [CmdLetBinding()]
    [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSAvoidUsingPlainTextForPassword","")]
    param (
        [parameter(Mandatory=$true, ValueFromPipeline=$true)]
        [OfficeOpenXml.ExcelPackage]$ExcelPackage,
        [switch]$Show,
        [Switch]$NoSave,
        $SaveAs,
        [ValidateNotNullOrEmpty()]
        [String]$Password,
        [switch]$Calculate
    )
    if ( $NoSave)      {$ExcelPackage.Dispose()}
    else {
        if ($Calculate) {
            try   { [OfficeOpenXml.CalculationExtension]::Calculate($ExcelPackage.Workbook) }
            catch { Write-Warning "One or more errors occured while calculating, save will continue, but there may be errors in the workbook."}
        }
        if ($SaveAs) {
            $SaveAs = $ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($SaveAs)
            if ($Password) {$ExcelPackage.SaveAs( $SaveAs, $Password ) }
            else           {$ExcelPackage.SaveAs( $SaveAs)}
        }
        else         {
            if ($Password) {$ExcelPackage.Save($Password) }
            else           {$ExcelPackage.Save()          }
            $SaveAs = $ExcelPackage.File.FullName
        }
        $ExcelPackage.Dispose()
        if ($Show)   {Start-Process -FilePath $SaveAs }
    }
}