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  1. A

    Excel Header

    The header is a "block of information about file content". To access the file header you need to open the "XLS" file as a binary file. The information about password, format, version,... are in the header of file.
  2. A

    Excel Header

    I need a routine to locate, in the XLS file header, the string generated by the password entered by the user in an excel spreadsheet. I want to use the string generated by the user's password to encrypt data in a database that will be manipulated by the excel. If possible, for 2003 and 2010...
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