title: Excel formula can start with?
body: <p>All</p>
  
  <p>I am using excel for financial calculations .</p>
  
  <p>Excel is having formula auto complete feature and generally any excel formula starts with  '=' equal to symbol .</p>
  
  <p>But when ever I type @or + or - operator as a first character and start typing alphabets excel suggesting formulas ..! </p>
  
  <p>Can any one explain what's the use of + or - or @ as a first character of formula ???</p>
  
  <p>Thanks in advance </p>