In the era of big data, organizations across industries are generating massive amounts of information every second. From customer behavior insights to operational analytics, data has become the backbone of decision-making. However, the sheer volume and complexity of modern datasets pose significant challenges. This is where data wrangling—the process of cleaning, transforming, and organizing raw data into a usable format—plays a crucial role. For aspiring professionals, mastering this skill is essential, and those exploring data analyst courses in Kolkata can gain targeted expertise in handling large datasets efficiently.