Explanation:
number 1 it will be safe for future use number 2 it helps in our rest of the work 
number 3 saving a file is a very good habit number for importance of saving file are a very very nice number 5 I hope it help please give me your ratings and like and also don't forget to read the brainly.com 
 
        
             
        
        
        
Answer:
There are five work sheets in this excel file, they are equipment, company, company, person and computer. Excel worksheets are made up of cells, with the columns labelled alphabetically and the rows numbered.
Explanation:
The columns of a worksheet is called a field while row are called records. They are used to locate a cell in the worksheet. There are so many statistical, mathematical and engineering functions in excel. It is used to display the analysis of data.
 
        
             
        
        
        
Answer:
flexible formatting and easily modified code
Explanation:
Cascading Style Sheets is known to be a tool for web design that is used in controlling a webpage layout while HTML directly deals with the actual content on the web design. Over the years, CSS has gone through so many changes and has come up with the latest version which is the CSS 3. Designing your website with CSS provides you with the flexibility to adjust the layout of a webpage. However, the major benefit of using CSS over HTML is the fact that CSS allows for flexible formatting and easily modified coding, unlike HTML. 
 
        
                    
             
        
        
        
The answer is a function.
In Microsoft Office Excel, a function refers to the pre-written formula that is built. There are a lot of functions in Microsoft Office Excel like the arithmetic functions such as sum or total, difference, and an average of numbers. In Excel, these functions are defined using Visual Basic.