Converting Excel Column Names to Numbers in Rust

When working with Excel files programmatically, converting column names (like “A”, “B”, “C”, …, “Z”, “AA”, “AB”, etc.) to their corresponding numeric values (0, 1, 2, …, 25, 26, 27, etc.) is a common task. Rust, with its performance, safety, and expressiveness, is an excellent choice for implementing such functionality.