Hi Wayne, This issue was forwarded to the POI developer list. The Apache Software Foundation is a large set of projects and you should contact the projects directly and not contact random addresses. Issues misdirect to random addresses are most likely to get lost. The POI contact points are described in: https://poi.apache.org/help/index.html
I think the issue might be what is described in README of: https://github.com/rzymek/opczip The Zip64 support in Excel is causing trouble for many lib maintainers. I don't know what the IBM tool that you refer to is. You should contact the IBM product team. In the end of the day, you might be best off upgrading EPPlus. Regards, PJ On Fri, 21 Feb 2025 at 15:11, Brian Proffitt <b...@apache.org> wrote: > > Forwarded from apa...@apache.org. Please respond, if desired, to > original sender, not me. > > ---------- Forwarded message --------- > From: Wood, Wayne (WP) <wayne.w...@worldpay.com> > Date: Thu, Feb 20, 2025 at 4:17 PM > Subject: Apache POI issue > To: apa...@apache.org <apa...@apache.org> > > > Hi, > > > > We are currently having an issue that is just like this one with our EPPlus > DLL library: Bad Signature BadReadException On Valid Excel File · Issue > #605 · EPPlusSoftware/EPPlus > <https://github.com/EPPlusSoftware/EPPlus/issues/605> > > Where an excel file is created by Apache POI software through an IBM > library/program and is somehow having the file corrupted by the creation > process, so that it can’t be opened by EPPlus v4.5 and lower. > > > > The error: > > The *OfficeOpenXml.Packaging.Ionic.Zip.BadReadException with the message > “Bad signature (0x0000041D) at position 0x0000017C” indicates that there’s > an issue with the signature or format of the Excel file you’re trying to > read*. > > > > > > We have a workaround that includes upgrading EPPlus but these higher > versions require a commercial license when greater than v4.5. > > > > Before we do so, we were wondering if this problem was on the radar of the > people maintaining the code for the Apache POI project. As well as if there > is an expected timeline of the fix, so that we know how long to commit to > this commercial license. > > > > Thank you, > > Wayne > The information contained in this message is proprietary and/or > confidential. If you are not the intended recipient, please: (i) delete the > message and all copies; (ii) do not disclose, distribute or use the message > in any manner; and (iii) notify the sender immediately. In addition, please > be aware that any message addressed to our domain is subject to archiving > and review by persons other than the intended recipient. Thank you. > > > > Brian Proffitt > VP, Marketing & Publicity > VP, Conferences --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@poi.apache.org For additional commands, e-mail: dev-h...@poi.apache.org
