Tue Feb 18 2020 19:19:11 UTC
its not whats on the outside its the inside that counts :D !!wink wink :D
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ID Product Comp Assignee Status Resolution Summary Changed
49312 POI HSSF dev RESO DUPL HSSFSheet - RuntimeException: Unexpected missing row 2012-10-11
54392 POI HSSF dev RESO DUPL HSSFWorkbook initialization fail, with RuntimeException during creation of HSSFSheet, caused by an unknown excel format 2016-02-23
2 bugs found.

as

File a new bug in the "HSSF" component of the "POI" product