The best way to learn keyboard shortcuts is to identify the most frequently used tasks in your workflow, find their corresponding shortcuts, and actively practice using them regularly until they become muscle memory; this often involves using a cheat sheet, focusing on a few key shortcuts at a time, and utilizing the in-app help menu to discover new shortcuts as needed. 

Some of the most useful shortcuts for Microsoft Excel include: 

Ctrl + N: Creates a new workbook

Ctrl + O: Opens an existing workbook

Ctrl + S: Saves a workbook

Ctrl + W: Closes the current workbook

Ctrl + F4: Closes Excel

Ctrl + PageDown: Moves to the next sheet

Ctrl + PageUp: Moves to the previous sheet

Alt + A: Goes to the Data tab

Alt + W: Goes to the View tab

Ctrl + C: Copies cell contents

Ctrl + V: Pastes cell contents

Ctrl + X: Copies and deletes cell contents

Shift + F2: Inserts a cell comment

Ctrl + Enter: Enters data without moving

Ctrl + ; Inserts the current date into a cell

Ctrl + Shift + : Inserts the current time into a cell

Esc: Cancels an entry

Ctrl + Spacebar: Selects an entire column

Ctrl + K: Opens the Insert Hyperlink dialog box

Ctrl + L: Opens the Create Table dialog box

The keyboard shortcut for bold text is Ctrl+B on Windows and Command+B on Mac. You can use this shortcut in many applications, including Microsoft Word and Paint. 

How to use the shortcut

Select the text you want to make bold 

Press Ctrl+B on Windows or Command+B on Mac 

Here are some common keyboard shortcuts for a computer:

Ctrl + V: Pastes highlighted text or information into a document 

Ctrl + Z: Undoes the last action 

Ctrl + X: Cuts selected text or files from a document or folder 

Ctrl + C: Copies selected text or images to the clipboard