$SiteURL = "https://domain.sharepoint.com"

 Write-Host "Loading CSOM libraries" -foregroundcolor black -backgroundcolor yellow

 Add-Type -Path "c:Program FilesCommon Filesmicrosoft sharedWeb Server Extensions15ISAPIMicrosoft.SharePoint.Client.dll"

Add-Type -Path "c:Program FilesCommon Filesmicrosoft sharedWeb Server Extensions15ISAPIMicrosoft.SharePoint.Client.Runtime.dll"

Write-Host "Lib. successfully loaded !" -foregroundcolor black -backgroundcolor Green

$scriptPath = Split-Path -Parent $MyInvocation.MyCommand.Definition

$User = Read-Host -Prompt "username"

$password = Read-Host -Prompt "Enter password" -AsSecureString

Write-Host "Trying to reach $SiteURL // Handling ClientContext..." -foregroundcolor black -backgroundcolor yellow

$Context = New-Object Microsoft.SharePoint.Client.ClientContext($SiteURL)

$credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($User, $password)

$Context.Credentials = $credentials

$context.RequestTimeOut = 5000 * 60 * 10;

$web = $context.Web

$site = $context.Site

$context.Load($web)

$context.Load($site)

try

{

 $context.ExecuteQuery()
 Write-Host "Connected !" -foregroundcolor black -backgroundcolor Green
}
 catch
 {
  Write-Host "Impossible to reach $SiteURL : bad password ?" -foregroundcolor black -backgroundcolor Red
  return
 }
 $list = $web.Lists.GetByTitle("Custom List");

 $fields = $list.Fields;

 $context.Load($web)

 $context.Load($site)

 $context.Load($list)

 $context.Load($fields)

 $context.ExecuteQuery()

 $fields | select SchemaXML  |  Export-Csv -path "d:schema.csv";`