Export all termsets from all groups into CSV files.

ExportTermsetIntoCSV.ps1

# ----------------------------------------------
# Author: Microsoft
# Date: 09.10.2013
# Description: Export all termsets from all groups into CSV files.
# ----------------------------------------------

$siteUrl = "<Enter URL of Central Administration>"
$outputDir = "<Enter export output path>"
 
 
  function Get-TermSetsCSV() {
     param($SiteUrl, $CSVOutput)
  
      $empty = ""
 
    $taxonomySite = Get-SPSite -Identity $SiteUrl
     #Connect to Term Store in the Managed Metadata Service Application
    $taxonomySession = Get-SPTaxonomySession -site $taxonomySite
  $taxonomyTermStore =  $taxonomySession.TermStores | Select Name
   $termStore = $taxonomySession.TermStores[$taxonomyTermStore.Name]
 
   foreach ($group in $termStore.Groups)
   {
       foreach($termSet in $group.TermSets)
         {
            $terms = @()
 
              #The path and file name, in this case I did C:\TermSet\TermSetName.csv
             $CSVFile = $CSVOutput + '\' + $termSet.Name + '.csv'
  
           #From TechNet: The first line of the file must contain 12 items separated by commas
             $firstLine = New-TermLine -TermSetName $termSet.Name -TermSetDescription $empty -LCID $empty -AvailableForTagging "TRUE" -TermDescription $empty -Level1 $empty -Level2 $empty -Level3 $empty -Level4 $empty -Level5 $empty -Level6 $empty -Level7 $empty
            $terms+=$firstLine
             #Now we start to add a line in the file for each term in the term set
             foreach ($term in $termSet.GetAllTerms())
            {
 
                 $tempTerm = $term
                $counter = 0
                 $tempTerms = @("","","","","","","")
 
               #this while loop makes sure you are using the root term then counts how many child terms there are 
                while (!$tempTerm.IsRoot)
                 {
                    $tempTerm = $tempTerm.Parent
                     $counter = $counter + 1
                 }
 
                 $start = $counter
  
                #this makes sure that any columns that would need to be empty are empty
                #i.e. if the current term is 3 levels deep, then the 4th, 5th, and 6th level will be empty
                while ($counter -le 6)
                {
                     $tempTerms[$counter] = $empty
                       $counter = $counter + 1
              }

                  #start with the current term
                 $tempTerm = $term
 
                #fill in the parent terms of the current term (there should never be children of the current term--the child term will have its own line in the CSV)
             while ($start -ge 0)
                  {
                     $tempTerms[$start] = $tempTerm.Name
                      $tempTerm = $tempTerm.Parent
                      $start = $start - 1
               }
  
                #create a new line in the CSV file
                 $CSVLine = New-TermLine -TermSetName $empty -TermSetDescription $empty -LCID $empty -AvailableForTagging "TRUE" -TermDescription $empty -Level1 $tempTerms[0] -Level2 $tempTerms[1] -Level3 $tempTerms[2] -Level4 $tempTerms[3] -Level5 $tempTerms[4] -Level6 $tempTerms[5] -Level7 $tempTerms[6]
 
                 #add the new line
               $terms+=$CSVLine
             }

             #export all of the terms to a CSV file
            $terms | Export-Csv $CSVFile -notype
         }
   }
     $taxonomySite.dispose()
 }
 
 #constructor
 function New-TermLine() {
      param($TermSetName, $TermSetDescription, $LCID, $AvailableForTagging, $TermDescription, $Level1, $Level2, $Level3, $Level4, $Level5, $Level6, $Level7)
 
      $term = New-Object PSObject
 
     $term | Add-Member -Name "TermSetName" -MemberType NoteProperty -Value $TermSetName
     $term | Add-Member -Name "TermSetDescription" -MemberType NoteProperty -Value $TermSetDescription
    $term | Add-Member -Name "LCID" -MemberType NoteProperty -Value $LCID
     $term | Add-Member -Name "AvailableForTagging" -MemberType NoteProperty -Value $AvailableForTagging
     $term | Add-Member -Name "TermDescription" -MemberType NoteProperty -Value $TermDescription
     $term | Add-Member -Name "Level1" -MemberType NoteProperty -Value $Level1
       $term | Add-Member -Name "Level2" -MemberType NoteProperty -Value $Level2
      $term | Add-Member -Name "Level3" -MemberType NoteProperty -Value $Level3
    $term | Add-Member -Name "Level4" -MemberType NoteProperty -Value $Level4
    $term | Add-Member -Name "Level5" -MemberType NoteProperty -Value $Level5
     $term | Add-Member -Name "Level6" -MemberType NoteProperty -Value $Level6
     $term | Add-Member -Name "Level7" -MemberType NoteProperty -Value $Level7
 
     return $term
  }
 
 Get-TermSetsCSV -SiteUrl $siteUrl -CSVOutput $outputDir