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.
File Formats. You can save Excel files in several different formats. The three most common operations would be to save as a PDF file, convert to a CSV file, or a comma delimited file, or save as an older version of MS Excel. Before we get into the steps, let's review the different types of files and why you might want to save an Excel file as something other than a MS Excel workbook.