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.
If you've never saved a file and you accidentally click Don't Save below when you close Excel (or Excel crashes), execute the following steps to recover the last autosaved file. Note: Excel tells you that if a recent copy will be available. 1. On the File tab, click Info.