PHPOffice/PHPExcel — pull request #13 by alexgann (2012-07-22 21:32:32+00:00)
Title: Add Currency detection to Classes/PHPExcel/Cell/AdvancedValueBinder.php

Add block to detect currency. Current block detects USD. Perhaps you left this out due to locale concerns and other currency sets, but would be nice for when user enters values with leading $ to get the USD format rather than text.