> java.io.IOException: block[ 0 ] already removed There is a chance this bug has already been fixed already.
It looks similar to this bug: https://issues.apache.org/bugzilla/show_bug.cgi?id=45290 And that change was after version 3.2. I'm not sure if index=0 is a critical detail. I did find an older bugzilla suggesting that this was fixed before 3.2-beta1: https://issues.apache.org/bugzilla/show_bug.cgi?id=42418 Could you try the problem file against a more recent poi version (3.5-beta)? If the problem still occurs, then it would be helpful if you could upload that file into a new bugzilla.
