Level 1: Basic Introduction

Excel Interface

Insert, Sorting, Filter

Conditional Formatting, Format Painter

Merge & Center, Bar Chart, Header

Cell Formatting

Table

Charts

Security

Limitation

Level 2: Text Functions

CONCAT, LEFT, RIGHT, MID

TRIM, UPPER, LOWER, LEN, SUBSTITUTE

Level 3: Formulas

Basic (SUM, AVERAGE, MIN, MAX, COUNT)✡️

Cell Referencing✡️

Logical Functions(IF, AND, OR, and nested IFs)✡️

Advanced Formulas (SUMIFS, COUNTIFS)✡️