The testing team follows Software Testing Life Cycle (STLC) which is similar to the development cycle followed by the development team. There are following six phases in every Software development life cycle model: Requirement gathering and analysis. Design.
If you simply deleted an XLS file, DiskInternals Excel Recovery will look up the file system to find all XLS files that were deleted recently, and test each file for the possibility of successful recovery.
Suppose you are working on a new document in Excel and the program locks up unexpectedly. In a few seconds you realize that you didn't save the workbook. Don't panic and discover below how to recover an unsaved file. Go to FILE-> Open. Choose Recent Workbooks. Scroll down and click on the Recover Unsaved Workbooks button at the bottom of the list.