Some folk like learning online.  There are 33 courses on Excel available on the Microsoft site.  Some are part audio with the words being spokn right along side the diagram, some all audio.  They all have practice with instant feedback.  These are recommended. Check out :

Excel training  
Audio course: Get to know Excel: Create your first workbook
Length: 40 min
Rating: 4.2 of 5 stars (6384 votes)
 
Excel training  
Audio course: So that's how! Great Excel features
(Freeze Rows/Column, Compare side by side, Sum, Quick Sum&Average, non-contiguous cell, Lists, Call attentions)
Length: 50 min
Rating: 4.2 of 5 stars (5240 votes)
 
Excel training  
Audio course: Get to know Excel: Enter formulas
Length: 50 min
Rating: 4.1 of 5 stars (3622 votes)
 
Excel training  
Charts I: How to create a chart
Length: 30 min
Rating: 3.9 of 5 stars (12282 votes)
Excel training  
Charts II: Choose the right chart type
Length: 30 min
Rating: 3.8 of 5 stars (3811 votes)
Excel training  
Charts III: Create a professional-looking chart
Length: 40 min
Rating: 3.8 of 5 stars (2876 votes)