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I have some files which need reading using Access / VBA. They are compressed using “.gz” compression. How can I read those files in?
I figure this must be a solved problem but alas can’t find anything. Command-line would be one option but it would involve the users of the VBA application having to have particular tools installed. Perhaps there is a library I can just include, which I can then ship with my VBA application (.accdr)?
There are quite a few libraries around, however, probably the most popular is zlib. A nice example using zlib, albeit written in VB6 (which shouldn’t be too difficult to convert to VBA) is located here. One nice point about zlib is that it doesn’t need registering (i.e.
REGSVR*), so you should be able to drop it into the same folder as your DB (or even embed it into the DB then extract it automatically).