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# UnsupportedFileFormatException not thrown anymore on Aspose.Words 23.2 for Java

Hi,
if we try to open a ZIP file (i.e. not a DOC/DOCX) from Aspose.Words 23.2, it’s not throwing any exception and goes ahead with parsing (being a zip file, we get garbled characters); up to version Apose.Words 22.8 instead we got an exception ‘UnsupportedFileFormatException’ , that was preventing our application to go ahead (and this was the correct behavior).
Could you please explain/check why the version 23.2 is not returning the expected exception in case of unsupported format anymore?
No code samples required as you can only write something like ‘doc = new Document(“anyyfile.zip”)’; with Aspose.Words 22.8 you get the exception (correct), with 23.2 instead no except. raised.

@gianfranco.dancelli
We have opened the following new ticket(s) in our internal issue tracking system and will deliver their fixes according to the terms mentioned in Free Support Policies.

Issue ID(s): WORDSNET-25109


You can obtain Paid Support Services if you need support on a priority basis, along with the direct access to our Paid Support management team.

As a temporary solution, you can use FileFormatUtil to detect file format before loading the file:

FileFormatInfo info = FileFormatUtil.DetectFileFormat(@"C:\Temp\in.zip");
Console.WriteLine(info.LoadFormat); // Returns Unknown for simple ZIP archives