Powerful XLSX Editor is a spreadsheet program which is safety,steady and efficient.

Once you get it , you can open,view,edit,save and print many documents such as .XLSX, .XLS freely.

It is a spreadsheet program, similar to Microsoft Excel or Lotus 1-2-3. It has a number of unique features, including a system which automatically defines series of graphs, based on information available to the user.

That is very useful and interesting.