SharePoint Online: Download All Versions of a Document using PowerShell
Requirement: Download All Versions of a Document in SharePoint Online using PowerShell.
SharePoint Online: PowerShell to Download All Versions of a Document
In SharePoint Online, documents are stored in libraries, and it’s common for multiple versions of a document to exist over time. Version history in SharePoint Online lets you store, track, and restore files in a library as they are changed. Sometimes, you may need to download all previous versions of a file. However, downloading all versions of a document can be a tedious process, especially if you have to do it manually. To save time and effort, you can use PowerShell to download all versions of a document in SharePoint Online.
As downloading each version of a file is time-consuming and cumbersome from web UI, Here is the PowerShell to download all versions of a file from a SharePoint Online document library using CSOM.
#Load SharePoint CSOM Assemblies
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.dll"
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.Runtime.dll"
#Parameters
$SiteURL = "https://Crescent.sharepoint.com"
$FileRelativeURL ="/Shared Documents/Discloser China.doc"
$DownloadPath= "C:\Temp"
#Get credentials to connect
$Cred = Get-Credential
#Setup the Context
$Ctx = New-Object Microsoft.SharePoint.Client.ClientContext($SiteURL)
$Ctx.Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($Cred.UserName, $Cred.Password)
#Get the File and its versions
$File = $Ctx.Web.GetFileByServerRelativeUrl($FileRelativeURL)
$Ctx.Load($File)
$Ctx.Load($File.Versions)
$Ctx.ExecuteQuery()
If($File.Versions.Count -gt 0)
{
Foreach($Version in $File.Versions)
{
#Frame File Name for the Version
$VersionFileName = "$($DownloadPath)\$($Version.VersionLabel)_$($File.Name)"
#Get Contents of the File Version
$VersionStream = $Version.OpenBinaryStream()
$Ctx.ExecuteQuery()
#Create File version at local disk
[System.IO.FileStream] $FileStream = [System.IO.File]::Open($VersionFileName,[System.IO.FileMode]::OpenOrCreate)
$VersionStream.Value.CopyTo($FileStream)
$FileStream.Close()
Write-Host -f Green "Version $($Version.VersionLabel) Downloaded to :" $VersionFileName
}
}
Else
{
Write-host "No Versions Available for "$Item["FileRef"] -f Yellow
}
PnP PowerShell to Export All Versions of a Document
Let’s use PnP PowerShell to download all versions of a file from SharePoint Online:
#Set Parameters
$SiteURL = "https://crescent.sharepoint.com/sites/Funds"
$FileRelativeURL = "/sites/Funds/Funds/Reporting/External/QR/2019/Q3 2019/Global 4/Global IT Seg v2.xlsx"
$DownloadPath = "C:\Temp"
#Connect to PnP Online
Connect-PnPOnline -Url $SiteURL -Interactive
$Ctx = Get-PnPContext
#Get the File
$File = Get-PnPFile -Url $FileRelativeURL
#Get File Versions
$FileVersions = Get-PnPProperty -ClientObject $File -Property Versions
If($FileVersions.Count -gt 0)
{
Foreach($Version in $FileVersions)
{
#Frame File Name for the Version
$VersionFileName = "$($DownloadPath)\$($Version.VersionLabel)_$($File.Name)"
#Get Contents of the File Version
$VersionStream = $Version.OpenBinaryStream()
$Ctx.ExecuteQuery()
#Download File version to local disk
[System.IO.FileStream] $FileStream = [System.IO.File]::Open($VersionFileName,[System.IO.FileMode]::OpenOrCreate)
$VersionStream.Value.CopyTo($FileStream)
$FileStream.Close()
Write-Host -f Green "Version $($Version.VersionLabel) Downloaded to :" $VersionFileName
}
}
Else
{
Write-host -f Yellow "No Versions Found!"
}
In summary, using PowerShell to download all versions of a document in SharePoint Online is a convenient and efficient way to get every change made to your documents. With PowerShell script, you can quickly retrieve all versions of a document, making it easier to track changes and keep a record of the document’s history.
