Integral field spectroscopy is a technique used in astronomy to obtain the spatially resolved spectra of an astronomical object. This means that instead of obtaining a single spectrum for the entire object, integral field spectroscopy allows astronomers to capture the spectrum at different locations within the object simultaneously. This provides valuable information about the properties of the object, such as its chemical composition, kinematics, and dynamics. Integral field spectroscopy utilizes an array of optical fibers or lenslets that divide the field of view into small elements, each of which corresponds to a different spatial location. These elements are then dispersed by a spectrograph, allowing for the simultaneous measurement of the spectrum at each location. Overall, integral field spectroscopy is a powerful tool for studying the detailed physical processes occurring in astronomical objects, such as galaxies, nebulae, and star clusters. It can provide insights into the internal structure, composition, and evolution of these objects, helping astronomers to better understand the universe's complexity.