Basic Excel Formatting: Professional Spreadsheets

Beginner20 min readUpdated: July 2024

1. Why Formatting Matters

Good formatting transforms raw data into professional, readable spreadsheets. It helps users understand information quickly, reduces errors, and makes your work stand out.

Benefits of Proper Formatting

  • Improves readability and comprehension
  • Highlights important information
  • Creates visual hierarchy
  • Reduces data entry errors
  • Makes reports print-ready

❌ Before Formatting

  • • Hard to read numbers
  • • No visual separation
  • • Unclear data types
  • • Looks unprofessional

✓ After Formatting

  • • Clear number formats
  • • Visual hierarchy
  • • Easy to scan
  • • Professional appearance

2. Cell Formatting Basics

Quick Access:

Right-click any cell and select "Format Cells" or use Ctrl + 1

The Power of Formatting

❌ Before Formatting

product name1234.50.15
widget a25000.2
gadget b899.990.1

Plain, hard to read data

✅ After Formatting

Product NamePriceDiscount
Widget A$1,234.5015%
Gadget B$2,500.0020%
Tool C$899.9910%

Professional, easy to scan

The Format Cells Dialog

Format Cells×
Number
Alignment
Font
Border
Fill
Protection

Category:

General
Number
Currency
Percentage
Date

Sample:

1234.5

Type: General format displays numbers as typed

Access with right-click → Format Cells or Ctrl+1

Quick Formatting Toolbar

Home tab provides instant access to formatting tools:

Font

BBold
IItalic
UUnderline

Colors

AFont Color
Fill Color

Number Format

$Currency
%Percent
,Comma Style

⌨️ Keyboard Shortcuts:

Ctrl+B Bold
Ctrl+I Italic
Ctrl+U Underline
Ctrl+Shift+$ Currency
Ctrl+Shift+% Percent
Ctrl+1 Format Dialog

3. Number Formats

Number formatting changes how values display without changing the actual data. This is crucial for presenting numbers in meaningful ways.

Common Number Formats

Format TypeExample InputDisplay ResultShortcut
General1234.51234.5-
Number1234.51,234.50-
Currency1234.5$1,234.50Ctrl+Shift+$
Percentage0.1515%Ctrl+Shift+%
Date450003/14/2023Ctrl+Shift+#

Custom Number Formats

Create your own formats using format codes:

Format Codes:

  • 0 - Required digit
  • # - Optional digit
  • . - Decimal point
  • , - Thousands separator
  • _ - Space equal to character

Examples:

  • 0.00 → 1234.50
  • #,##0 → 1,234
  • $#,##0.00 → $1,234.50
  • 0.00% → 15.00%
  • 000-00-0000 → 123-45-6789

4. Fonts and Alignment

Font Options

  • Font Family:Calibri (default)
  • Font Size:11pt (default)
  • Font Style:Regular, Bold, Italic
  • Font Color:Automatic (black)

Alignment Options

  • Horizontal:Left, Center, Right
  • Vertical:Top, Middle, Bottom
  • Text Control:Wrap, Shrink, Merge
  • Orientation:0° to 90° rotation

Pro Tips for Text

  • Wrap Text: Shows long text on multiple lines within a cell
  • Shrink to Fit: Reduces font size to fit cell width
  • Merge & Center: Combines cells for titles (use sparingly!)
  • Indent: Add space before text for hierarchy

5. Borders and Colors

Border Styles

Border Locations:

  • • Outline - Around selection
  • • Inside - Grid lines
  • • Top/Bottom/Left/Right
  • • Diagonal lines

Line Styles:

  • • Thin (default)
  • • Medium
  • • Thick
  • • Double
  • • Dotted/Dashed

Quick Borders:

  • • All Borders
  • • Outside Borders
  • • Bottom Border
  • • No Border

Color Guidelines

Background Colors

  • Headers - Light blue
  • Alternating rows - Light gray
  • Totals - Light yellow
  • Input cells - Light green

Best Practices

  • Use subtle colors for backgrounds
  • Maintain high contrast for text
  • Limit to 3-4 colors per sheet
  • Be consistent across workbook
  • Consider color-blind users
  • Test print preview

6. Conditional Formatting Basics

Conditional formatting automatically applies formatting based on cell values. It's perfect for highlighting trends, outliers, and important data.

Getting Started:

Select cells → Home → Conditional Formatting → Choose a rule type

Basic Rule Types

Highlight Cell Rules

  • • Greater Than/Less Than
  • • Between values
  • • Equal to specific value
  • • Text that contains
  • • Dates occurring
  • • Duplicate values

Data Bars

Show values as horizontal bars within cells

Sales:
Costs:

Color Scales

Apply gradient colors based on values

Low values → Red | Mid → Yellow | High → Green

7. Formatting Best Practices

✓ Do's

  • Use consistent formatting throughout
  • Apply number formats to entire columns
  • Use cell styles for consistency
  • Test print preview before printing
  • Keep formatting simple and clean

✗ Don'ts

  • Overuse colors and fonts
  • Merge cells in data ranges
  • Use too many decimal places
  • Mix formatting styles
  • Ignore accessibility needs

Practice Exercise: Sales Report

Create a professional sales report with these formatting requirements:

  1. Title: Merge cells A1:E1, 16pt bold, centered
  2. Headers: Bold, light blue background, white text
  3. Data: Alternate row colors (white/light gray)
  4. Numbers: Currency format with 2 decimals
  5. Percentages: One decimal place
  6. Borders: Outline around entire table
  7. Totals row: Bold, yellow background
  8. Conditional formatting: Highlight sales > $1000

Goal: Create a report that's print-ready and easy to read

Ready for the Next Step?

Continue your Excel journey with: Working with Excel Worksheets