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How can I close a csv file used by a subreport after it finishes.


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I'm using Ireport 4.7.0. I start a report thru a groovy call passing java.util list. The main report passes a csv datasource to a subreport.

It works Ok and the report generates an Excel file, where the subreport is placed into a separate sheet of the .xls file.

The problem is that I need to delete this file after generating the report. How can I do this? I get an error message saying the file is in use by JAVA Platform SE Binary.

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