diff --git a/core/attributedef.class.inc.php b/core/attributedef.class.inc.php
index 3f7863c29..7fc74a8a5 100644
--- a/core/attributedef.class.inc.php
+++ b/core/attributedef.class.inc.php
@@ -9946,7 +9946,6 @@ class AttributeTagSet extends AttributeSet
 	 * @param bool $bConvertToPlainText
 	 *
 	 * @return mixed|string
-	 * @throws \CoreException
 	 */
 	public function GetAsCSV(
 		$value, $sSeparator = ',', $sTextQualifier = '"', $oHostObject = null, $bLocalize = true,
diff --git a/core/spreadsheetbulkexport.class.inc.php b/core/spreadsheetbulkexport.class.inc.php
index f84695f83..ad64e6add 100644
--- a/core/spreadsheetbulkexport.class.inc.php
+++ b/core/spreadsheetbulkexport.class.inc.php
@@ -276,6 +276,7 @@ EOF
 				$sAttCode = $aFieldSpec['sAttCode'];
 
 				$sField = '';
+				/** @var \DBObject $oObj */
 				$oObj = $aRow[$sAlias];
 				if ($oObj == null)
 				{
@@ -333,11 +334,16 @@ EOF
 							$sField = utils::TextToHtml($oObj->GetEditValue($sAttCode));
 							$sData .= "<td x:str>$sField</td>";
 						}
-						else if($oAttDef instanceof AttributeString)
+						else if ($oAttDef instanceof AttributeString)
 						{
 							$sField = $oObj->GetAsHTML($sAttCode, $this->bLocalizeOutput);
 							$sData .= "<td x:str>$sField</td>";
 						}
+						else if ($oAttDef instanceof AttributeTagSet)
+						{
+							$sField = $oObj->GetAsCSV($sAttCode, $this->bLocalizeOutput, '');
+							$sData .= "<td x:str>$sField</td>";
+						}
 						else
 						{
 							$rawValue = $oObj->Get($sAttCode);