Step 1: Add Files (.xls , .xlsx).
Add Files - In this step you can add MS Excel (.xls , .xlsx) files, just click on "Add Files" button to open file dialog box select files you want to add, you can select multiple files. You can also add all files of a selected folder by clicking on "Add Folder" button, it automatically search the selected folder and add all the MS Excel Files.

Step 2: Select Format.
It is a compulsory step to follow. Here you can choose any of the following file formats from dropdown List to convert your files into:

• Excel Workbook (*.xlsx)
• Excel Binary Workbook (*.xlsb)
• Excel 97-2003 Workbook (*.xls)
• Web Page (*.html)
• Excel Template (*.xltx)
• Excel Macro-Enable Template (*.xltm)
• Excel 97-2003 Template (*.xlt)
• XML Spreadsheet 2003 (*.xml)
• Text (*.txt)
• CSV – Comma delimited (*.csv)
• Pdf  (*.pdf)
• XPS Document (*.xps)

Click on start conversion button to convert added files format in to selected format. You can also set the location of converted file.
Remove Selected: You can remove the selected files from the file list, to select multiple files in file list use Ctrl or Shift key. You can also remove files by pressing DEL key from Keyboard.
Clear File List: You can remove all files from the file list; it will alert you before removing all files. You can also remove files by pressing DEL key from Keyboard.
Open Target Folder: You can open the location of converted files by click on open target folder button.
Add Suffix with Converted File Name: You can alsoaddany suffix with filename before process start on File Folder Options Panel.

Some Other Settings for CSV and Text file: You can also convert MS Excel (.xls , .xlsx) files into CSV(*.csv) and TEXT(*.txt) file with some other option like Export Active Sheet , Export First Sheet and Export All Sheet with merge file and separate file.

Go to Help Menu. Now click on Deactivate option.
Step 1 : Deactivate from current PC.
Step 2 : Install the software on new PC and Register it with same Activation Key.