https://bugs.documentfoundation.org/show_bug.cgi?id=82984
--- Comment #18 from Kevin Suo <suokunl...@126.com> --- The easiest way to identify whether an xlsx (zip) for is in ZIP64 format, under linux, seems to be: $ xxd ./test.xlsx 00000000: 504b 0304 2d00 0000 0800 4155 6e48 3c5c PK..-.....AUnH<\ 00000010: b548 ffff ffff ffff ffff 1300 1400 5b43 .H............[C ...... Each column is 2 bytes According to https://users.cs.jmu.edu/buchhofp/forensics/formats/pkzip.html: 1. The first 4 bytes, "504b 0304" indicates that it is a zip file. 2. Bytes 19-22 denotes to "Compressed size". If archive is in ZIP64 format, then this is "ffff ffff". 3. Bytes 23-26 denotes to "Uncompressed size". If archive is in ZIP 64 format, then this is also "ffff ffff". -- You are receiving this mail because: You are the assignee for the bug.
