JAVA archiving API is over complicated for developers. Archive manager is a JAVA framework to reduce the complexity of file archiving. Basically what you need to do is to setup an archive context, the archive manager will do the rest of the work.
AutoSpreadsheet is a programmable macro tool for .xls format spreadsheets. It is ideal for situations when you have to perform a repetitive series of operations on a spreadsheet with a known layout but with arbitrary data.