Question

which character will always precede an excel formula?+!==

Explanation:

In Excel, a formula is an expression that calculates the value of a cell. All formulas in Excel must begin with an equal sign (=). This is how Excel distinguishes a formula from just text or a number. For example, if you want to add two cells A1 and A2, you would type =A1 + A2 in a cell. The + is an arithmetic operator used within the formula, not to start it. The ! is used in Excel to reference a cell in a different worksheet (e.g., Sheet2!A1). The /= is not a valid starting character for an Excel formula.

Answer:

=