Like many applications in Google Workspace, Sheets comes with many customizable features such as text formats, cell formats, filters, functions, and more.
In your spreadsheet, select the cells you want to customize, then use the menus and toolbar to change their formats.
Use the arrows 
at the top of the page to undo or redo your last changes.
The paint roller 
can copy the formatting from one section of text and apply it to another section.
Format your data as currency, percentages, dates, times, plain text, or other options 
.
Change font or font size 
.
Add font styles such as bold, italics, underline, and font color 
.
Add or edit cell borders 
.
Merge cells 
.
Choose text alignment 
.
Insert links, comments,, or charts 
.
Filter your data 
.
Add functions 
.
