Open a spreadsheet program and start with a blank sheet

The fastest way to create a spreadsheet is to open a program you likely already have. On Windows, that is usually Microsoft Excel. On Mac, it is Numbers. On any computer with a web browser, you can use Google Sheets — go to sheets.google.com, sign in with a Google account, and click the plus sign to start a blank sheet. All three work the same way at the basic level: you get a grid of rows and columns, and you type into the boxes (called cells).

If you do not have Excel and do not want to pay for it, LibreOffice Calc is free and works almost identically. read it from libreoffice.org, install it like any other program, and open it. You will see the same grid layout. The menu buttons are in slightly different places, but the core task — entering data and doing math — is the same.

Key Takeaways

  • A spreadsheet is a grid where each box (cell) holds one piece of information, and you reference cells by their column letter and row number — like A1 or B3.
  • Type data into cells one at a time, or paste in a list from another document and the spreadsheet will split it into separate cells automatically.
  • A formula starts with an equals sign and tells the spreadsheet to do math or combine information — for example, =A1+A2 adds the numbers in cells A1 and A2.
  • Save your spreadsheet to your computer or to the cloud (Google Drive, OneDrive) so you do not lose it if your device crashes.
  • Organize related information into separate sheets within one file so you can compare or reference data without opening multiple files.

Understand the grid: columns, rows, and cell names

A spreadsheet is a grid. The vertical lines are columns, labeled A, B, C, and so on across the top. The horizontal lines are rows, numbered 1, 2, 3, and so on down the left side. Each box where a column and row meet is a cell. The cell in column A, row 1 is called A1. The cell in column B, row 3 is called B3. This naming system matters because you will use it to tell the spreadsheet which cells to add, compare, or copy.

Click on any cell to select it — the cell will highlight and you will see its name in the box at the top left (usually labeled "Name Box"). Type directly into the cell, or type into the formula bar at the top and press Enter. Either way, your text or number goes into that cell. Press Tab to move to the next cell to the right, or press Enter to move down to the cell below.

Enter your data row by row or column by column

Decide whether your information makes more sense organized by rows or by columns. If you are tracking monthly expenses, you might put the month in column A, the category in column B, and the amount in column C. If you are tracking a single person's information across time, you might put the date in row 1, the person's name in A1, and their data points in the cells below.

Type the headers (the labels for what each column or row contains) first. In a budget spreadsheet, row 1 might say "Month", "Rent", "Groceries", "Utilities". Then type your data into the rows below. If you have data in another document — a list copied from an email, or numbers from a text file — you can paste it into a single cell and the spreadsheet will often split it into separate cells automatically. If it does not, use the "Text to Columns" feature (in Excel, this is under the Data menu) to split pasted data into the right cells.

Use formulas to do math and combine information

A formula is an instruction that tells the spreadsheet to do something with the numbers or text in your cells. Every formula starts with an equals sign. The simplest formula adds two cells: type =A1+A2 into a cell, and the spreadsheet will add the numbers in A1 and A2 and show you the result. Other basic operations are subtraction (=A1-A2), multiplication (=A1*A2), and division (=A1/A2).

You can also use formulas to count cells, find the average of a group of numbers, or find the largest or smallest value. Type =SUM(A1:A10) to add all the numbers from A1 through A10. Type =AVERAGE(A1:A10) to find the average. Type =MAX(A1:A10) to find the highest number, or =MIN(A1:A10) to find the lowest. The colon (:) means "through" — so A1:A10 means all the cells from A1 to A10 in one go.

Once you write a formula in one cell, you can copy it down or across to other cells. Click the cell with the formula, then drag the small square at the bottom right corner down or to the side. The spreadsheet will adjust the cell references automatically — if you copy =A1+A2 down to the next row, it becomes =A2+A3, then =A3+A4, and so on. This saves you from typing the same formula over and over.

Format your data so it is straightforward to read

Once your data is in the spreadsheet, you can make it easier to understand. Select a cell or a group of cells by clicking and dragging, then use the toolbar buttons to make text bold, change the font size, or add a background color. Most spreadsheet programs let you highlight the header row in a different color so it stands out from the data below.

You can also format numbers to show as currency (with a dollar sign), percentages, or dates. Right-click on a cell or group of cells and look for "Format Cells" or "Format Numbers". Choose the format that matches your data. If you have a column of prices, format it as currency so $5.00 displays correctly instead of just 5.

Save your spreadsheet so you do not lose your work

Save your spreadsheet regularly. In Excel or LibreOffice, use Ctrl+S (or Cmd+S on Mac) to save to your computer. The first time you save, you will be asked to name the file and choose where to put it. Give it a name that tells you what it contains — "2024 Budget" or "Household Expenses" — and save it to a folder you can find again.

If you use Google Sheets, your work is saved automatically to Google Drive as you type. You do not have to do anything. If your computer crashes or your browser closes, your spreadsheet is still there when you sign back in. If you use Excel or LibreOffice and want that same protection, save your file to OneDrive (Microsoft) or Google Drive instead of just to your computer. That way you have a backup if something goes wrong.

Organize multiple sheets within one file

A single spreadsheet file can hold multiple sheets. At the bottom of the window, you will see tabs with names like "Sheet1", "Sheet2", and so on. Right-click on a tab to rename it to something meaningful — "January", "Expenses", "Income". This is useful when you want to track related information in one place. You might have one sheet for each month of the year, or separate sheets for different categories of expenses, all in the same file.

You can reference cells from one sheet in another. If you want to add up totals from multiple sheets, you can write a formula like =Sheet1!A1+Sheet2!A1 (the exclamation mark tells the spreadsheet to look in a different sheet). This lets you keep your data organized without opening multiple files.

Frequently Asked Questions

What is the difference between Excel, Google Sheets, and LibreOffice?

Excel costs money and runs on your computer. Google Sheets is free and runs in your web browser, so you can access it from any device. LibreOffice is free, runs on your computer, and works almost exactly like Excel. For basic budgeting or household tracking, all three do the same job. Google Sheets is easiest to share with others because you just send them a link.

Can I import data from another program into a spreadsheet?

Yes. If you have data in a text file, email, or another program, you can usually copy it and paste it into a spreadsheet. The spreadsheet will try to put each piece of information into its own cell. If it does not work perfectly, use the "Text to Columns" feature (in Excel, under the Data menu) to split the data into the right cells.

What happens if I accidentally delete something?

Press Ctrl+Z (or Cmd+Z on Mac) to undo your last action. You can undo multiple times to go back several steps. Google Sheets also keeps a version history, so you can see all the changes made to a file and go back to an earlier version if needed.

Can I use a spreadsheet on my phone?

Yes. Google Sheets, Excel, and LibreOffice all have mobile apps you can read from your phone's app store. They work the same way as the computer versions, though the smaller screen makes it harder to see a lot of data at once. Mobile apps are better for checking or updating a spreadsheet than for creating one from scratch.