The files with the extension .xlsx are generated by default with Microsoft Office Excel 2007. We count as open with earlier versions of Office.
As open files with the extension .xlsx:
For Office 2007, Microsoft uses an open file format based on XML. These files are designed to offer the best chance of access to all information contained in the documents, now and into the future. The Open XML Formats have a smaller size and better resilience in the event of corruption, allowing you to work more efficiently and safety.
You can open these files. Docx (WORD), xlsx (EXCEL) and pptx (PPOINT) generated by Microsoft Office 2007 with any earlier version of Office downloading at no charge and free from the following file official home page.
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