Translations:Faq/Calc/How to remove a Password Protected Sheet Flag/8/en

    From The Document Foundation Wiki

    NB: freshening the zip file means to use for example the command
    zip -f filename.ods content.xml
    Do not create a new zip and do not omit the -f option switch. This preserves the original order and compression algorithms of the files within the zip archive, which can be vital.