You can open the software with Notepad, which is shown, or you can open with another program such as Visual Studio, Excel or Notepad++. Click the program you want to use to open the file.

You may have seen someone turn an XML document into spreadsheet format, thereby making it easier to work with the data. However, if you try to open an XML file in Microsoft Excel, you'll get an ...

The next version of Office will fully support two new file formats, Strict Open XML and Open Document Format 1.2, Microsoft has announced. In a blog post on Monday, Office standards chief Jim ...

Simply put, .xlsx is a file extension for the open XML spreadsheet used by Microsoft Excel from 2007 onwards. Why the change in format from earlier versions of Excel?

Citing statements of support from more than 300 companies and organizations, Microsoft claimed on Tuesday that interest in its Office Open XML file format continues to grow. Comments backing the ...

Microsoft’s Macintosh Business Unit released three updates for its Mac Office products. Office 2008, Office 2004 and the Open XML File Format Converter for Mac are all available from the company ...