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Using XSSFWorkbook to read FileInputStream on an Excel file

Thomas | Last updated: Sep 09, 2022 02:38PM UTC

Greetings! I am developing an extender (written in Java) where it will be parsing in an excel checklist. I am using XSSFWorkbook to parse an Excel workbook using FileInputStream. However, after loading the extender and test the feature, no excel file was parsed and there was no exceptions logged too. The libraries used for XSSFWorkbook includes poi (5.2.2), poi-ooxml (5.2.2) and poi-ooxml-schema (4.1.2) Previously this feature works in BurpSuite Pro 2020.2 and since then, I am unable to use the FileInputStream. Any idea to fix this?

Hannah, PortSwigger Agent | Last updated: Sep 12, 2022 09:51AM UTC

Hi When you run Burp, are you using the standalone JAR file or launching the Installer version? Are you using a build tool, like Maven or Gradle, to manage your dependencies?

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