The iWork 2013 file format includes .iwa (iWork Archive) files stored within a .zip file. "IWA files are stored in Snappy's framing format, though they do not adhere rigorously to the spec. In particular, they do not include the required Stream Identifier chunk, and compressed chunks do not include a CRC-32C checksum." https://github.com/obriensp/iWorkFileFormat/blob/master/Docs/index.md#iwa
Is there an implementation of Snappy that can decompress files missing these components? If so, is there example code?
Examples of iWork files may be found at the bottom of this page: http://fileformats.archiveteam.org/wiki/IWA. For instance, unzipping file TestReport.pages.zip shows that it contains Index.zip, which contains .iwa files.
I tried decompressing the .iwa files using the Snappy for Windows command line tool here: http://snappy.angeloflogic.com/downloads/ . However, I received the error: "Found invalid data while decoding."
I do not yet have sample code because I do not know which implementation of Snappy I should base my code on.