What is DEC2BIN function in Excel? DEC2BIN function is one of Engineering functions in Microsoft Excel that converts a decimal number to binary. Syntax of DEC2BIN function DEC2BIN(number, [places]) The DEC2BIN function syntax has the following arguments: Number: The decimal integer you want to convert. If number is negative, valid place values are ignored and DEC2BIN returns a 10-character (10-bit) binary…