Make POI to parse spreadsheets from File rather than from InputStream when possible ----------------------------------------------------------------------------------- Key: DROOLS-1050 URL: https://issues.jboss.org/browse/DROOLS-1050 Project: Drools Issue Type: Enhancement Reporter: Mario Fusco Assignee: Mario Fusco Fix For: 6.4.0.CR1 As documented here https://poi.apache.org/apidocs/org/apache/poi/ss/usermodel/WorkbookFactor... loading a spreadsheet from an InputStream requires more memory than loading from a File. It's therefore required to make POI to load and parse from a File when possible.