Learn how to convert postfix expressions to infix expressions using a stack data structure. Explore the rules, pseudocode, and working principles of the stack in this conversion process. Understand the Last In First Out (LIFO) or First In Last Out (FILO) properties that make stacks ideal for this application. Follow along with a step-by-step example, dry-running the pseudocode and comparing the results with manual conversion. Gain practical knowledge of data structures and algorithms through this hands-on tutorial.