Step 1: Add Files (.XLS, .XLSX).
Add Files - In this step you can add MS excel files like .XLS, .XLSX. You need click on "Add file" and a dialogue box of files will be shown from where you can select the files. You can also select a whole consisting of word files by clicking on "Add Folder".
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.