File Format & Compatibility

Why Excel Opens CSV Files in Separate Columns & How to Fix It

Amos Gikunda Oct 12, 2026 869 views

Question details

The user wants to understand the default behavior of CSV files in Excel, specifically why the data is divided into columns rather than displaying the raw comma-separated text.

Why Does Excel Open a CSV File in Separate Columns?

Product: Microsoft Excel
Device & OS: not provided
Scenario: Opening a plain-text CSV (Comma-Separated Values) file directly in Microsoft Excel.
Observed behavior: Excel automatically parses the default delimiters (like commas) and places the values into separate columns instead of showing the original text format.

Before you start

Before opening your file, determine whether you need to edit the raw text itself or if you want to analyze the data within a standard spreadsheet grid layout.

Solution 1Recommended

Import the CSV File Using Get Data for Full Control

Instead of double-clicking the file, importing it gives you complete control over how Excel separates the data and formats each column, preventing automatic formatting errors.

By default, Excel assumes standard delimiters based on your system's regional settings and attempts to automatically guess data types. This can lead to lost leading zeros or incorrect date formats. Using the import wizard prevents this.

Open a blank workbook

Launch Excel and create a new, blank workbook.

Navigate to the Data tab

Click on the **Data** tab located in the top ribbon menu.

Select the Import tool

Click on **From Text/CSV** (or go to **Get Data** > **From File** > **From Text/CSV** depending on your Excel version).

Choose your file

Locate your `.csv` file in the file explorer and click **Import**.

Adjust settings and load

In the preview window, ensure the correct **Delimiter** (e.g., Comma) is selected. Click **Transform Data** if you need to assign specific column formats (like Text for zip codes), then click **Close & Load**.

Import the CSV File Using Get Data for Full Control

Preserving Data Integrity: Importing data this way ensures that long numbers and text values are not accidentally converted into scientific notation or incorrect dates.

Solution 2

Open with a Text Editor to View Raw Data

If you just want to see the original comma-separated text without Excel parsing it into columns, you can open the file using a basic text editor.

Easily Import and Edit CSV Files with WPS Spreadsheet

WPS Spreadsheet offers an intuitive Data Import tool that lets you customize delimiters, preserve text formatting, and manage CSV files effortlessly without the risk of unwanted auto-formatting.

1. Launch WPS Spreadsheet: Open WPS Office and create a new blank spreadsheet.
2. Access the Import tool: Navigate to the **Data** tab on the top menu and click on **Import Data**.
3. Select your CSV: Browse your local files, select the `.csv` file you wish to open, and click **Open**.
4. Configure the import wizard: Follow the Text Import Wizard prompts to choose your delimiter (e.g., Comma) and assign accurate data types to your columns before finalizing the import.

100% compatibility with Microsoft Excel CSV and XLSX formatsPrecise control over text-to-column delimitersSafely preserves original data formats like leading zerosFree, lightweight, and features a familiar user interface

microsoft office alternative - wps office

Frequently Asked Questions

Why does my CSV file open in one single column instead of separate columns?

This usually happens when the CSV file uses a delimiter (such as a semicolon) that does not match your computer's default regional settings list separator. You can fix this by using the 'Data > From Text/CSV' import tool to manually select the correct delimiter.

How do I stop Excel from removing leading zeros in my CSV files?

When you double-click a CSV, Excel automatically formats numbers and drops leading zeros (common in ZIP codes or IDs). To prevent this, do not double-click the file. Instead, import it using 'Data > From Text/CSV' and change the specific column's data type to 'Text' before loading it into the spreadsheet.

Is a CSV file the same as an Excel file?

No. A CSV (Comma-Separated Values) is a universal, plain-text file that only stores raw data separated by commas. An Excel file (.xlsx) is a specialized format that supports multiple sheets, complex formulas, formatting, macros, and charts.

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