List Files in a 'zip' Archive
Value
A data frame with columns: filename, compressed_size,
uncompressed_size, timestamp, permissions, crc32 and offset.
Details
Note that crc32 is formatted using as.hexmode(). offset refers
to the start of the local zip header for each entry. Following the approach
of seek() it is stored as a numeric rather than an integer vector and
can therefore represent values up to 2^53-1 (9 PB).