Quite often it turns out that we need to import more than one page, or to replace a number of pages of several parameters. Through the standard editing pages is very awkward. Sometimes it is much easier to keep a separate file, which will be dynamically updated everything.
Especially for this plugin was created XLS Importer, which allows you to import and update data through the pages of the file MS Excel 2003.
Link to author page: http://littledev.ru/news/cotonti/cotontifolio/xls-importer.html