On Mon, 20 Dec 2010, Dave Irving (Delcam) wrote:
I am working with large files - i.e. lots of data file > 2Gb in size, in some instances. I need to extract a 3Mb file from this large compound file, then modify it and write it back into the
compound file WITHOUT having to re-write any of the other storages.

At the moment, this isn't possible. However, I'm in the middle of some POIFS work to reduce the memory footprint, and when that work's done it ought to be possible to do this. I'd suggest you join the dev list, and watch the commits list. Hopefully it'll become possible in the new year when the work is done

Nick

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