File type: Microsoft Works Spreadsheet
XLS are spreadsheet or chart files that are created with the help of Microsoft Excel that comes in the Microsoft Office Suite Package. Microsoft Excel is a spreadsheet application which is one of the most popular and widely used spreadsheet applications in the industry; other competitors like Lotus 1-2-3 have not been able to cope up with it. These files store the data in the cells and organize them in rows and columns as a table. These spreadsheets can be created with the help of Works 8.0 but can also be read by Microsoft Excel.