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In Excel and Word 95 and prior editions a weak protection algorithm is used that converts a password to a 16-bit verifier and a 16-byte XOR obfuscation array [1] key. [4] Hacking software is now readily available to find a 16-byte key and decrypt the password-protected document. [5] Office 97, 2000, XP and 2003 use RC4 with 40 bits. [4]
Password to open a document [47] Password to modify a document [48] Password to unprotect the worksheet; Password to protect workbook; Password to protect the sharing workbook [49] All passwords except password to open a document can be removed instantly regardless of the Microsoft Excel version used to create the document. These types of ...
LibreOffice is able to open and save Office Open XML files. [45] Apache OpenOffice from version 3.0 can import Office Open XML files but not save them. [46] Version 3.2 improved this feature with read support even for password-protected Office Open XML files. [47] [48] [49] The Go-oo fork of OpenOffice could also write OOXML files.
Make sure that your password is difficult for others to guess, but easy for you to remember. Check out our Password protection tips article for techniques on generating passwords. Keep it to yourself. Never disclose or give your password and Account Security Question if you are prompted to in a link sent to you in an email, chat room or pop-up ...
Strong in use protection, such as controlling copy & paste, preventing screenshots, printing, editing. A rights model/policy which allows for easy mapping of business classifications to information. Offline use allowing for users to create/access IRM sealed documents without needing network access for certain periods of time.
Word, Excel, and PowerPoint on the web can all natively open, edit, and save Office Open XML files (docx, xlsx, pptx) as well as OpenDocument files (odt, ods, odp). They can also open the older Office file formats (doc, xls, ppt), but will be converted to the newer Open XML formats if the user wishes to edit them online. Other formats cannot be ...
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The sharing mode (dwShareMode) parameter of the CreateFile [2] function (used to open files) determines file-sharing. The sharing mode can be specified to allow sharing the file for read, write, or delete access, or any combination of these. Subsequent attempts to open the file must be compatible with all previously granted sharing-access to ...
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