Introduction to Spreadsheets
MS Excel is a powerful spreadsheet program that allows users to organize, analyze, and visualize data in tabular form. Used in schools, businesses, and scientific work, Excel helps manage information efficiently through its grid interface of rows and columns.

Fig 1.1: The Excel workspace with rows, columns, and cells
Practical Example: Create a monthly expense tracker by listing daily expenses in column A and amounts in column B, then use the SUM function to calculate totals automatically.
Rows, Columns, and Cells
The Excel grid consists of:
- Rows: Horizontal lines numbered 1, 2, 3…
- Columns: Vertical lines labeled A, B, C…
- Cells: Intersections identified by addresses (e.g., A1, B2)

Fig 1.2: Understanding cell references in Excel
Student Application: Record science test scores with student names in column A (A2-A6) and scores in column B (B2-B6). Reference these cells in formulas for automatic calculations.
Basic Formulas and Functions (SUM, AVERAGE)
Excel formulas begin with = and perform calculations automatically:
=SUM(B2:B6)
– Adds values in cells B2 through B6=AVERAGE(B2:B6)
– Calculates the mean of values

Fig 1.3: Using basic Excel functions
Exercise 1: Test Score Calculator
- Create a table with 5 student names in column A (A2-A6)
- Enter their test scores (out of 100) in column B (B2-B6)
- In cell B7, write
=SUM(B2:B6)
to calculate total - In cell B8, write
=AVERAGE(B2:B6)
for class average - Change some scores and watch the totals update automatically!
Formatting Cells (Borders, Fonts, Alignment)
Professional formatting options under the “Home” tab:
- Borders: Outline cells or ranges
- Fonts: Change style, size, and color
- Alignment: Position text left/center/right
Exercise 2: Create a Marksheet
- Make a table with columns: Name, Math, Science, History
- Enter data for 5 students
- Format the header row with bold text and fill color
- Add borders to all cells
- Center-align all numerical scores
- Use the SUM function to calculate totals for each student
Sorting and Filtering Data
Under the “Data” tab, you can:
- Sort: Organize data A-Z, numerically, or by date
- Filter: Display only rows meeting specific criteria

Fig 1.4: Data sorting and filtering interface
Classroom Use: Sort student scores to identify top performers or filter to view only students with grades above 80%.
Creating Simple Charts (Bar, Line, Pie)
Visualize data with charts from the “Insert” tab:
- Bar: Compare values across categories
- Line: Show trends over time
- Pie: Display proportions of a whole

Fig 1.5: Excel chart examples
Project Idea: Create a bar chart comparing monthly expenses (Rent, Food, Transportation) to visualize spending patterns.
Coming Soon: Advanced Excel Features
In Part 2, we’ll cover:
- Advanced functions (VLOOKUP, IF statements)
- Data validation and conditional formatting
- Pivot tables for data analysis
- Collaboration features