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What does X denotes in ASPX, DOCX, XLSX, PPTX etc?

Fresh7 days ago
Mar 15, 20263864 views
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Problem

Previously there were etc and now respectively. What does denotes in etc?

Error Output

ASP, DOC, XLS, PPT

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Fix for: What does X denotes in ASPX, DOCX, XLSX, PPTX etc?

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For the last three, when Microsoft switched to XML-based file formats in Office 2007, they added the 'x' to the file extensions to differentiate from the previous, incompatible formats. ASPX was added with the introduction of ASP.NET to differentiat…

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