EWS Script to Export Calendar Items to a CSV file via PowerShell

Scenario:  You need a script to export the calendar items of a mailbox into a CSV file.

Solution: Use the script below to export the calendar items of a mailbox into a CSV file.  Please note that the date range has a 2 year/1000 appointment max.  Depending on the number of items in the calendar between your date range, you may have to adjust the date range to accommodate the 1000 item limit. Also, give yourself full access to the mailbox you are querying. I used a section of Glen’s script because he nailed the attendee’s query. Props to Glen!

#Declare Variables
$EWSDLL = "C:Program FilesMicrosoftExchange ServerV15BinMicrosoft.Exchange.WebServices.dll"
$MBX = "teststeve@domain.com"
$EWSURL = "https://Ex2013Svr1.domain.com/EWS/Exchange.asmx"
$StartDate = (Get-Date).AddDays(-60)
$EndDate = (Get-Date)  

#Binding of the calendar of the Mailbox and EWS
Import-Module -Name $EWSDLL
$mailboxname = $MBX
$service = new-object Microsoft.Exchange.WebServices.Data.ExchangeService([Microsoft.Exchange.WebServices.Data.Exchangeversion]::exchange2013)
$service.Url = new-object System.Uri($EWSURL)
$folderid= new-object Microsoft.Exchange.WebServices.Data.FolderId([Microsoft.Exchange.WebServices.Data.WellKnownFolderName]::Calendar,$MailboxName) 
$Calendar = [Microsoft.Exchange.WebServices.Data.Folder]::Bind($service,$folderid)  
$Recurring = new-object Microsoft.Exchange.WebServices.Data.ExtendedPropertyDefinition([Microsoft.Exchange.WebServices.Data.DefaultExtendedPropertySet]::Appointment, 0x8223,[Microsoft.Exchange.WebServices.Data.MapiPropertyType]::Boolean); 
$psPropset= new-object Microsoft.Exchange.WebServices.Data.PropertySet([Microsoft.Exchange.WebServices.Data.BasePropertySet]::FirstClassProperties)  
$psPropset.Add($Recurring)
$psPropset.RequestedBodyType = [Microsoft.Exchange.WebServices.Data.BodyType]::Text;

$RptCollection = @()

$AppointmentState = @{0 = "None" ; 1 = "Meeting" ; 2 = "Received" ;4 = "Canceled" ; }

#Define the calendar view  
$CalendarView = New-Object Microsoft.Exchange.WebServices.Data.CalendarView($StartDate,$EndDate,1000)    
$fiItems = $service.FindAppointments($Calendar.Id,$CalendarView)
if($fiItems.Items.Count -gt 0){
 $type = ("System.Collections.Generic.List"+'`'+"1") -as "Type"
 $type = $type.MakeGenericType("Microsoft.Exchange.WebServices.Data.Item" -as "Type")
 $ItemColl = [Activator]::CreateInstance($type)
 foreach($Item in $fiItems.Items){
  $ItemColl.Add($Item)
 } 
 [Void]$service.LoadPropertiesForItems($ItemColl,$psPropset)  
}
foreach($Item in $fiItems.Items){      
 $rptObj = "" | Select StartTime,EndTime,Duration,Type,Subject,Location,Organizer,Attendees,AppointmentState,Notes,HasAttachments,IsReminderSet
 $rptObj.StartTime = $Item.Start  
 $rptObj.EndTime = $Item.End  
 $rptObj.Duration = $Item.Duration
 $rptObj.Subject  = $Item.Subject   
 $rptObj.Type = $Item.AppointmentType
 $rptObj.Location = $Item.Location
 $rptObj.Organizer = $Item.Organizer.Address
 $rptObj.HasAttachments = $Item.HasAttachments
 $rptObj.IsReminderSet = $Item.IsReminderSet
 $aptStat = "";
 $AppointmentState.Keys | where { $_ -band $Item.AppointmentState } | foreach { $aptStat += $AppointmentState.Get_Item($_) + " "}
 $rptObj.AppointmentState = $aptStat 
 $RptCollection += $rptObj
 foreach($attendee in $Item.RequiredAttendees){
  $atn = $attendee.Address + "; "  
  $rptObj.Attendees += $atn
  }
 foreach($attendee in $Item.OptionalAttendees){
  $atn = $attendee.Address + "; "  
  $rptObj.Attendees += $atn
 }
 foreach($attendee in $Item.Resources){
  $atn = $attendee.Address + "; "  
  $rptObj.Resources += $atn
 }
 $rptObj.Notes = $Item.Body.Text
#Display on the screen
 "Start:   " + $Item.Start  
 "Subject: " + $Item.Subject 
}   
#Export to a CSVFile
$RptCollection |  Export-Csv -NoTypeInformation -Path "c:temp$MailboxName-CalendarCSV.csv"