The challenge
Support editable cells, formula evaluation, structural changes, history, and file handling without relying on a spreadsheet framework.
PROJECT 07 / 2025
MiniExcel
A practical spreadsheet engine that turns core data-structure concepts into a familiar desktop workflow built entirely with Java Swing.
07
MiniExcel
TypeJava Swing spreadsheet application
Year2025
StackJava / Swing / DSA / CSV
CASE STUDY
From problem
to shipped work.
A quick, clear look at the thinking behind the project.
The solution
A JTable interface backed by dynamic lists, stack-based undo and redo, regular-expression parsing, and a shunting-yard evaluator for formulas and functions.
The outcome
A working single-file Java application with common spreadsheet operations, 14 formula functions, and portable CSV save and load support.