Is there an updated version of the EPPlus.dll available?

[jamieharrellmba]

The existing EPPlus.dll build seems to contain a Zip signature bug which causes some valid Excel files to throw an Invalid Signature error on open. Please see this in EPP (EPPlusSoftware/EPPlus#1808) and this in DotNetZip (haf/DotNetZip.Semverd#82).

Is there an updated build of EPPlus.dll available for release with ImportExcel that would fix this? I've tried building EPPlus.dll from source, but am getting dependency issues and I'm not a dotnet expert.

[dfinke]

EPPlus has an updated version, it requires a licencse, when they created that version they fixed issues know it would it would cause breaing changes.

No clue what those are about.

[jamieharrellmba]

I would purchase a commercial license - or since I work for an educational institution use the educational free license. I've even tried compiling from their open source, but am bumping into issues with DotNet dependency problems I can't quite figure out. But you think even if I do get an updated DLL their latest version has breaking changes so it wouldn't work anyways? Not quite clear from your note above, but I think that's what you're suggesting.

[dfinke]

@jamieharrellmba many breaking changes in their latest DLL and the "key" being enabled would need to be implemented.