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.
Luckily, the options to auto save and auto recover files are turned on in Excel by default. If you are not sure, you can easily check them up. 1  Go to the FILE tab and choose Options from the FILE menu.  Click Save on the left-hand pane of the Excel Options dialog.