Excel Essentials: From Raw Data to Useful Insights

6 May 2026

If you work with data in any form, Excel is one of the most useful tools you can learn. The good news is you don’t need to be an expert to get real value from it. A handful of core skills can help you organise information, spot trends, and build simple reports that actually support decisions.

This guide walks through the essentials: formulas, tables, filters, and basic reporting.

1. Getting Comfortable with Formulas

Formulas are what turn Excel from a static grid into a working tool.

At the simplest level, formulas perform calculations using cell values. Every formula starts with an equals sign.

Common examples:

• =A1 + B1 → adds two cells
• =A1 * B1 → multiplies
• =A1 / B1 → divides

But in business use, you’ll rely more on built-in functions.

Key functions to know:

• SUM → adds a range of numbers
  • =SUM(A1:A10)
• AVERAGE → calculates the mean
  • =AVERAGE(A1:A10)
• COUNT → counts numeric entries
• IF → applies logic
  • =IF(A1>100,"Over Target","Under Target")

That last one is especially useful for reporting. It lets you turn raw numbers into meaningful labels.

2. Turning Data into Tables

Most people skip this step, but it’s one of the biggest upgrades you can make.

Highlight your data and press Ctrl + T to create a table.

Why this matters:

• Your data becomes structured and easier to manage
• Filters are automatically added
• Formulas copy down automatically
• Charts and reports update more reliably

Tables also make your formulas cleaner. Instead of referencing A1:A100, Excel uses column names, which are easier to read and maintain.

3. Using Filters to Find What Matters

Filters help you quickly narrow down large datasets without changing the data itself.

Once your data is in a table:

• Click the dropdown on any column
• Choose what to display

Common filter uses:

• Show only a specific region or department
• Find transactions above a certain value
• Identify missing or blank entries

You can also sort data (A–Z, largest to smallest), which is useful for spotting top performers or outliers.

4. Simple Reporting That Actually Helps

You don’t need complex dashboards to create useful reports. A few basic techniques go a long way.

Example 1: Sales Summary

• Use SUM to total sales by category
• Use IF to flag performance vs target

Example 2: Monthly Tracking

• Group data by month
• Calculate totals and averages
• Highlight trends (growth or decline)

Example 3: Status Overview

• Use conditional formatting to colour-code results
  • Green = on track
  • Red = needs attention

5. A Quick Workflow Example

Let’s say you’re tracking sales data:

1. Import or paste your data into Excel
2. Convert it into a table
3. Add a column with an IF formula to flag performance
4. Use filters to review specific segments (region, product, etc.)
5. Create a small summary section with totals and averages

In less than 10 minutes, you’ve gone from raw data to something you can actually use in a meeting.

Maple's Thoughts

You don’t need advanced Excel skills to be effective. Focus on:

• Basic formulas
• Structured tables
• Filtering data
• Clear, simple summaries

Mastering these fundamentals will make your work faster, more accurate, and far easier to explain to others. From there, you can build toward more advanced tools like pivot tables or dashboards when you’re ready.