Hello, I hope the following is not OT, although it is not specifically a question about OO:
I save the same file in MS Excel 2010 (a) and LO 4.1.x (b) in OOXML format (*.xlsx). Now I look at the file headers of (a) and (b) and find the first 10 bytes: (a): 50 4B 03 04 14 00 06 00 08 00 (b): 50 4B 03 04 14 00 08 08 08 00 Because they are zip files the first 4 bytes are 50 4B 03 04 and equal, as well the following two bytes are equal. However, bytes 7 and 8 differ. OK, in principle i can look up what these bytes encode: https://users.cs.jmu.edu/buchhofp/forensics/formats/pkzip.html My question is what values for these 2 bytes of the header are allowed at all so it still corresponds to the ISO standard for OOXML. In the ISO standard: http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=51463 i could not find anything so far. There is only general talk of the zip format and I'm not sure whether that means that the values after byte 4 can be differently, depending on the program that are used. Greetings, Jörg --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@openoffice.apache.org For additional commands, e-mail: dev-h...@openoffice.apache.org
