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I want to read an xlsx file using api XSSF. For that I downloaded poi-3.6 api and then did set the correct classpath but then too when I run my program I get an Exception as in thread "main" java.lang.NoClassDefFoundError: org/apache/poi/xssf/usermodel/XSSFWorkbook
But I can read xls file using HSSF api without any exception.
java.lang.NoClassDefFoundErroris always a classpath issue: java can’t find the classorg/apache/poi/xssf/usermodel/XSSFWorkbookon the classpath while executing your main method.The class is inside the poi-ooxml-3.6-xxx.jar. Double check if this lib is really on the classpath.