How to reduce TrueVFS dependencies
问题 I was recently looking for a decent library to work with ZIP files. Several post on SO recommended TrueVFS, formerly TrueZip. I need to extract individual files, modify them, and put them back to archive, overriding the old one. The goal is to write library to upload Java macros to ODF files, Libre Office/Open Office documents, which are in fact standard ZIP files. The TrueVFS documentation lacks basics, so it took me some time and experimentation to find that one can do it very easily: