Update export-topics-powershell.md

I updated the article to be more clear and the user will have less reverse engineering to do. 

1. Modified example script to include correct syntax
2. Add reference to missing DLL file noted in errors during failed attempts
3. Added directions for folder structure

Author: robsoto1

microsoft-365/topics/export-topics-powershell.md

@@ -31,8 +31,12 @@ To export the topics, you run a PowerShell script. Requirements to run the scrip
 
 - PowerShell 7 or later. To install the latest version of PowerShell, go to [Installing PowerShell on Windows](/powershell/scripting/install/installing-powershell-on-windows#installing-the-msi-package).
 - The user running the script needs to be a Topics admin or Knowledge Manager.
+- Create a subfolder for the Lib files called "lib"
+- Copy the following DLL from the AzureAD PowerShell module folder on your local desktop to the same directory has the lib files displayed below
+	- Microsoft.IdentityModel.Clients.ActiveDirectory.dll
+   	- If you don't have the Azure AD module, install it and then grab the file from C:\Program Files\WindowsPowerShell\Modules\AzureAD\2.x.x.x
 
-Key support files are included in this document:
+Key support files are included in this document (place in the Lib subfolder listed in Requirements):
 
 - [Key support file AuthLib.ps1](#key-support-file-authlibps1)
 - [Key support file TopicLib.ps1](#key-support-file-topiclibps1)
@@ -46,7 +50,7 @@ Export-TopicLite -Upn < string > | Export-Csv -Path < string >
 Example:
 
 ```powershell
-Export-TopicLite -Upn "[email protected]" -Path "C:\"
+Export-TopicLite -Upn "[email protected]" | Export-Csv -Path "C:\temp\export.csv"
 ```
 
 ## Output
@@ -639,4 +643,4 @@ function Get-TopicsDashboard()
     return $snapshots
 }
 
-```
+```