Start Exploring Microsoft Excel
Once the Microsoft Excel is launch, you can directly use it by entering data or
you can choose to open the existing Excel file. Below are the step-by-step
guides:
Creating and Opening Workbooks
To start using Microsoft Excel, you can start with a new blank workbook or open
the existing Excel file.
To create a new default workbook
Click on the New icon located on the Standard toolbar
OR press Ctrl+N
To open a file
From the File menu, click Open.
From the Open dialog box as displayed, use the Look in: drop down menu to
select the drive or folder that contains the file you want.
To open the file you can either double-click on the file name
OR select the file name by clicking on it, and then click on the Open
button. See more at
http://tutor.moes.ug/2015/10/start-exploring-microsoft-excel/