You simply have to type to an editor like the notepad to display the non-printing characters.
Hide/Show
When "Show nonprinting characters" is turned on, you can see symbols representing spaces, tabs, and paragraph breaks in a document. These characters are not printed on the page but help you visualize the layout and formatting of the document.
nonprinting characters
The paragraph marker, which is actually called a Pilcrow and looks like this: ¶
Can you please provide more context for characters who display somewhat thicker and darker characteristics?
small arrow
Bold
To display Chinese characters, the Chinese Language Support is needed. Please check the step-by-step guide below.
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Bold
Like all modern applications Excel has the capability to show things in various colours, so it can display characters in many colours.
It depends on the length of each word. The number of words does not matter; the limit is the number of total characters, including spaces. The maximum length of cell contents (text) is 32,767 characters. Only 1,024 display can display in a cell, but all 32,767 characters display in the formula bar.