https://issues.apache.org/bugzilla/show_bug.cgi?id=44581

           Summary: xssf.helpers.ColumnHelper bug/issue with long ranges
           Product: POI
           Version: 3.0-dev
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: PatchAvailable
          Severity: normal
          Priority: P2
         Component: POI Overall
        AssignedTo: [email protected]
        ReportedBy: [EMAIL PROTECTED]


Created an attachment (id=21652)
 --> (https://issues.apache.org/bugzilla/attachment.cgi?id=21652)
Patch that fixes the bug and adds XSSF style related stuff

cleanColumns() of xssf.helpers.ColumnHelper seems to have a slight bug in it.
If you pass in a column definition for a long range, it'll take several minutes
to run!
Try running the test org.apache.poi.xssf.extractor.TestXSSFExcelExtractor
One of the files that uses has a column definition for something like columns
14 to 16384 in it. cleanColumns() will still be trying to process it after
about 5 minutes!


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