libraries/tbs/plugins/tbs_plugin_opentbs.php
function MsExcel_GetDrawingLst() {

		$lst = array();

		$dir = '../drawings/';
		$dir_len = strlen($dir);
		$o = $this->OpenXML_Rels_GetObj($this->TBS->OtbsCurrFile, $dir);
		foreach($o->TargetLst as $t) {
			if ( (substr($t, 0, $dir_len)===$dir) && (substr($t, -4)==='.xml') ) $lst[] = 'xl/drawings/'.substr($t, $dir_len);
		}

		return $lst;
	}
function MsExcel_GetDrawingLst() {

		$lst = array();

		$dir = '../drawings/';
		$dir_len = strlen($dir);
		$o = $this->OpenXML_Rels_GetObj($this->TBS->OtbsCurrFile, $dir);
		foreach($o->TargetLst as $t) {
			if ( (substr($t, 0, $dir_len)===$dir) && (substr($t, -4)==='.xml') ) $lst[] = 'xl/drawings/'.substr($t, $dir_len);
		}

		return $lst;
	}
Return the list of images in the current sheet