XLSX Excel Spreadsheets are different than the XLS version in that they use the Microsoft Office Open XML format. The Open XML format makes it easy for other programs, such as OpenOffice.org, to read XLSX files (and other Open XML file types). The Open XML format was introduced with Microsoft Office 2007.
It was first published anonymously in Paris in 1697 in Histoires ou contes du temps passe (PassÃ©: English stories Or tales Of Past), times a collection of eight fairy tales By. perrault
The earliest recorded version of the Cinderella tale comes from China. It was written down by Tuan Ch'eng-shih in the middle of the ninth century A.D (850-60 Common Era). From the way it was written, it is thought that readers were already familiar with the story and that this version was the first to be written down.