To convert radians to degrees in Excel, you can use the RADIANS function. The syntax for the RADIANS function is as follows:

RADIANS(angle)

Where angle is the angle in radians that you want to convert to degrees. For example, if you have an angle of 1.5 radians, you would use the following formula:

RADIANS(1.5)

Which would return 86.6025403784439 degrees.