xlsx file extension (archive_name.xlsx)
This file extension corresponds to an excel file which has been saved with on of the latest version of excel (above 2007) and can be opened with office suite 2007 or a new version of open office.
The format itself is an organized xml which tells the application where is each block element and its properties.
Another free alternative for windows is excel viewer which can open this file without having excel installed.
The Applications are sorted by their respective software popularity and you will find all the FREE programs above.
Open Office
What is open office? have you ever heard of Microsoft Office? do you know how much is it? really!? wow, well I suggest you to see this one at the very nice price tag of $ 0!
Of course it can open your old Microsoft office files aaand you can also open and save PDF files.
As this guys says in his website OpenOffice.org 3 is the leading open-source office software suite for word processing, spreadsheets, presentations, graphics, databases and more. It is available in many languages and works on all common computers. It stores all your data in an international open standard format and can also read and write files from other common office software packages. It can be downloaded and used completely free of charge for any purpose.
Enjoy this Super App!
Go to this link to download the Software: http://www.openoffice.org/
Excel Viewer
This Application is a free version of excel that ONLY lets you open and print excel workbooks, it is a good option in case you only want to print a file that somebody sent you and you dont want to spent money on software.
The link below is to download excel viewer 2007 which can open the NEW famous XLSX
Go to this link to download the Software: http://www.microsoft.com/downloadS/details.aspx?familyid=1CD6ACF9-CE06-4E1C-8DCF-F33F669DBC3A&displaylang=en
