If you do not know the identifiers of the worksheet, you must execute the first query to get the metafile tables for your table:
$query = new Zend_Gdata_Spreadsheets_DocumentQuery(); $query->setSpreadsheetKey($spreadsheetKey); $feed = $spreadsheetService->getWorksheetFeed($query);
Then you iterate over the $ feed-> entries, and each entry will represent a worksheet and have an identifier.
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