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What is a Pptx file?

Pptx is a new presentation format that was introduced by Microsoft in Microsoft Office 2007. It replaced .Ppt as the standard format of Microsoft PowerPoint Presentations. Pptx is based on the new standard for Office files(spreadsheets, word processing documents, presentations etc) called Office Open XML, which replaced the previous binary and 2003 XML formats. Pptx files cannot be opened in older versions of Microsoft Office without prior conversion to Ppt format. Related: What is a...

What is a Docx file?

Docx is a new document format that was introduced by Microsoft in Microsoft Office 2007. It replaced .Doc as the standard format of Microsoft Word Documents. Docx is based on the new standard for Office files(spreadsheets, word processing documents etc) called Office Open XML, which replaced the previous binary and 2003 XML formats. Docx files cannot be opened in older versions of Microsoft Office without prior conversion to Doc format. Related: What is a Xlsx...

What is a Xlsx File?

Xlsx is a new spreadsheet format that was introduced by Microsoft in Microsoft Office 2007. It replaced .Xls as the standard format of Microsoft Excel Spreadsheets. Xlsx is based on the new standard for Office files(spreadsheets, word processing documents etc) called Office Open XML, which replaced the previous binary and 2003 XML formats. Xlsx files cannot be opened in older versions of Microsoft Office without prior conversion to Xls format. How to convert XLSx files to XLS files? You...