Microsoft has introduced a new default file format in Office 2007 called .xlsx, docx , and .pptx for Excel, Word and Power Point respectively. The letter X appended to each file extension as the data stored in these files in the form of open XML format. The earlier version of Microsoft Office uses binary file to stores both data and related formatting information. The open XML format is absolutely isolated where data and related formatting details stored in XML files separately. In other words, open XML file is actually a .zip file which contains both data and formatting related files in it.
How Office Excel stores data in .XLSX fileThe key benefit of using Open XML format is Compact. The files are compressed automatically up to 75 percent. In this article, we will discuss on how Open Office XML used in Microsoft Office Excel .XLSX file to store the text data and related formatting information.
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