I got into them when I started working on a big project that needed some serious data analysis. Learning formulas like SUMIF and LOOKUP really helped me cut down on time spent crunching numbers. I remember using LOOKUP to pull data from one sheet into another, and it felt like magic when it worked! I also found here super helpful for brushing up on my skills and picking up new tricks. The tutorials made it easier to understand how to combine functions for better results.