Spreadsheet

Overview

A spreadsheet application I built from scratch in C#. It's the kind of project where formula evaluation either works exactly right or produces confidently wrong numbers.

Key Contributions

• Designed the dependency graph and formula evaluation logic behind every cell update.
• Built the object-oriented architecture the rest of the app relies on.
• Built the graphical interface so entering and evaluating data felt immediate.

Lessons Learned

• Formula evaluation forced me to think in dependency graphs. I learned to test my logic before I trusted it, not after.

Technologies