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  2. Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Excel

    Because Excel is widely used, it has been attacked by hackers. While Excel is not directly exposed to the Internet, if an attacker can get a victim to open a file in Excel, and there is an appropriate security bug in Excel, then the attacker can gain control of the victim's computer. [121] UK's GCHQ has a tool named TORNADO ALLEY with this purpose.

  3. Microsoft Office password protection - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Office_password...

    For XLSX files that can be opened but not edited, there is another attack. As the file format is a group of XML files within a ZIP; unzipping, editing, and replacing the workbook.xml file (and/or the individual worksheet XML files) with identical copies in which the unknown key and salt are replaced with a known pair or removed altogether ...

  4. List of software that supports Office Open XML - Wikipedia

    en.wikipedia.org/wiki/List_of_software_that...

    Microsoft Office Open XML Converter for Mac OS X can convert Office Open XML files to the former binary file formats used in older versions of Microsoft Office. [33] OxygenOffice includes xmlfilter which is the code that OpenOffice.org 3 will use to process Office Open XML files, and xmlfilter is completely different from OdfConverter. [65]

  5. Office Open XML - Wikipedia

    en.wikipedia.org/wiki/Office_Open_XML

    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.

  6. List of Microsoft Office filename extensions - Wikipedia

    en.wikipedia.org/wiki/List_of_Microsoft_Office...

    .xltm – Excel macro-enabled template; same as xltx but may contain macros and scripts; Other formats Microsoft Excel uses dedicated file formats that are not part of OOXML, and use the following extensions:.xlsb – Excel binary worksheet (BIFF12).xla – Excel add-in that can contain macros.xlam – Excel macro-enabled add-in.xll – Excel ...

  7. Spreadsheet - Wikipedia

    en.wikipedia.org/wiki/Spreadsheet

    Some spreadsheet implementations in Excel allow cell references to another spreadsheet (not the currently open and active file) on the same computer or a local network. It may also refer to a cell in another open and active spreadsheet on the same computer or network that is defined as shareable.

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  9. List of spreadsheet software - Wikipedia

    en.wikipedia.org/wiki/List_of_spreadsheet_software

    Both free and paid versions are available. It can handle Microsoft Excel .xls and .xlsx files, and also produce other file formats such as .et, .txt, .csv, .pdf, and .dbf. It supports multiple tabs, VBA macro and PDF converting. [10] Lotus SmartSuite Lotus 123 – for MS Windows. In its MS-DOS (character cell) version, widely considered to be ...