Microsoft’s decision to change the default file format in Office 2007 for some of its most popular Office programs has caused some confusion and controversy, especially shortly after introduction. Back then no one was able to open the docx, xlsx or pptx file formats if they would not have Microsoft Office installed. This changed quickly as Microsoft released the Office 2007 compatibility suite for previous installments of Microsoft Office. Users without Microsoft Office were able to work with the new formats in Open Office or use online converters to convert them to traditional Office documents.
The Google Docs team on the other hand was reserved and did not add support for these file formats until now. Today, they announced that they finally added support for both the docx (that is for Microsoft Word 2007 documents) and xlsx (Microsoft Excel 2007 spreadsheets) format in Google Docs.
Support in this case means that users can upload files with the docx and xlsx extension to Google Docs. The size limitations are 500 Kilobytes for docx documents and 1 Megabyte for xlsx spreadsheets.

The document can then be edited in Google Docs just like any other document. There is however no option to save documents to a local computer system in the docx or xlsx format yet. Google Docs will automatically convert the documents to doc or xls format.
Enjoyed the article?: Then sign-up for our free newsletter or RSS feed to kick off your day with the latest technology news and tips, or share the article with your friends and contacts on Facebook or Twitter.Related Articles:
Google Docs Adds Office Excel 2007 XLSX SupportGoogle Docs Viewer Gets Microsoft Excel, Adobe Photoshop Support
Docx And Xlsx Data Recovery Software
How do I open docx files ?
Open XML Docx Viewer

I have the same.,