Description:

The XAR project aims to provide an easily extensible archive format.
Important design decisions include an easily extensible XML table of contents
for random access to archived files, storing the toc at the beginning of the
archive to allow for efficient handling of streamed archives, the ability to
handle files of arbitrarily large sizes, the ability to choose independent
encodings for individual files in the archive, the ability to store checksums
for individual files in both compressed and uncompressed form, and the
ability to query the table of content's rich meta-data.