Here are a bunch of shortcuts that may be able to help you navigating around Excel, may be able to help with repeated steps of just show off some skills when you learn them.
Some are not just for Excel.
Ctrl + A - Select All
Ctrl + B - Bold
Ctrl + C - Copy
Ctrl + D - Fill
Ctrl + F - Find
Ctrl + G - Find next instance of text
Ctrl + H - Replace
Ctrl + I - Italic
Ctrl + K - Insert a hyperlink
Ctrl + N - New workbook
Ctrl + O - Open
Ctrl + P - Print
Ctrl + R - Nothing right
Ctrl + S - Save
Ctrl + U - Underlined
Ctrl + V - Paste
Ctrl +W - Close
Ctrl + X - Cut
Ctrl + Y - Repeat
Ctrl + Z - Cancel
F1 - Help
F2 - Edition
F3 - Paste the name
F4 - Repeat the last action
F4 - When entering a formula, switch between absolute / relative references
F5 - Goto
F6 - Next Pane
F7 - Spell Check
F8 - Extension of the mode
F9 - Recalculate all workbooks
F10 - Activate Menubar
F11 - New graph
F12 - Save As
Ctrl +: - Insert the current time
Ctrl +; - Insert the current date
Ctrl + "- Copy the value of the cell above
Ctrl + '- Copy the formula from the cell above Shift - Offset Adjustment for Additional Functions in the Excel Menu
Shift + F1 - What is it?
Shift + F2 - Edit cell comment
Shift + F3 - Paste the function into the formula Shift + F4 - Search Next
Shift + F5 - Find
Shift + F6 - Previous Panel
Shift + F8 - Add to the selection
Shift + F9 - Calculate the active worksheet
Shift + F10 - Popup menu display
Shift + F11 - New spreadsheet
Shift + F12 - Save
Ctrl + F3 - Set name
Ctrl + F4 - Close
Ctrl + F5 - XL, size of the restore window
Ctrl + F6 - Next Workbook Window
Shift + Ctrl + F6 - Previous Workbook Window Ctrl + F7 - Move window
Ctrl + F8 - Resize Window
Ctrl + F9 - Minimize the workbook
Ctrl + F10 - Maximize or Restore Window
Ctrl + F11 - Inset 4.0 Macro sheet
Ctrl + F1 - Open File
Alt + F1 - Insert a graph
Alt + F2 - Save As
Alt + F4 - Output
Alt + F8 - Macro dialog
Alt + F11 - Visual Basic Editor
Ctrl + Shift + F3 - Create a name using the names of row and column labels
Ctrl + Shift + F6 - Previous Window
Ctrl + Shift + F12 - Printing
Alt + Shift + F1 - New spreadsheet
Alt + Shift + F2 - Save
Alt + = - AutoSum
Ctrl + `- Toggle value / display of the formula Ctrl + Shift + A - Insert the argument names in the formula
Alt + down arrow - automatic view format
Alt + '- Format Style Dialog
Ctrl + Shift + ~ - General Format