How can I convert a list to an expression? [duplicate]

For example, I have the following list:

{x1,op1,x2,op2,x3,op3,...}

And I would like to convert the list to the following expression:

x1 op1 x2 op2 x3 op3 ...

• That's just Times @@ {x1, op1, x2, op2, x3, op3}. I'm sure this question has been asked before, and it's pretty easily found in the documentation as well. I am going to close it. – Mr.Wizard Jul 31 '13 at 20:43
• @Mr.Wizard I assume the op1, op2 etc. stand for operator 1, operator 2 etc. so this changes the intention of the question slightly. – Sjoerd C. de Vries Jul 31 '13 at 22:05
• @Sjoerd In that case is a duplicate of (15032). – Mr.Wizard Jul 31 '13 at 22:34