How to Divide Large CSV Files into Smaller Ones: Easy Ways

Summary: In this article, we will discuss how to divide large CSV files into smaller ones using both effective manual and automated methods for the best results.

You might know that CSV files are usually used for saving and migrating data in a tabular structure. These files are universally acceptable and very lightweight, which makes them compatible with other platforms. However, when CSV file size becomes too large, it becomes very difficult to access or transfer. Many users face this problem, and even their files get corrupted while managing them. 

In such cases, this article will help you resolve the error by dividing the large CSV file into smaller and manageable parts. Let’s begin with the article.

How Large CSV Files Create Problems?

These huge data files exceed the handling capacity of applications like Excel. When your file exceeds this, you cannot open it properly. Large files may result in the following, even before they reach that limit:

• Slow loading and freezing
• High memory consumption
• System crashes
• Difficulty in sharing via email or cloud platforms
• Increased risk of data corruption

To avoid these issues, it is practical to divide large CSV files into smaller ones for easier handling and better performance.

Benefits to Divide Large CSV Files into Smaller Ones

Splitting a huge CSV file offers multiple advantages:

• Improved Performance: Small CSV files load faster, which reduces system strain.
• Better Manageability: One can easily organize data into a proper structure.
• Easy Sharing: Smaller CSV data files are very easy to upload or send.
• Reduced Error Risk: There are very few chances of corruption during processing.
• Enhanced Compatibility: It works smoothly with several data tools and applications.

Now, let’s dive into the solution to split CSV file into multiple files.

Effective Methods to Divide Large CSV Files into Smaller Ones

In the following section, we will display the best solutions to fix the error.

1. Using MS Excel
2. Try Text Editor (Notepad)
3. Use Powershell
4. Using a Certified Software

Let’s understand them with an explanation.

#1 Using Microsoft Excel

If your CSV file is within the Excel Size, then follow the steps:

1. Open your CSV file in MS Excel.
2. Choose any particular number of rows
3. Copy and paste them into a new sheet.
4. Now, save your new file as CSV.
5. Repeat the same process until your file is fully divided.

Cons: This process is very time-consuming and also not suitable for large files.

#2 Try Text Editor (Notepad)

Steps to Follow:

1. Open CSV data file in Notepad.
2. Select the CSV rows manually.
3. Copy & paste them into a new file
4. Save each file separately into CSV format.

Cons: There is a high risk of accidental deletion or risk of data structure.

#3 Use PowerShell

This method is for an advanced user who wants to divide large CSV files into smaller ones using scripts. In this method, one can mention the number of rows per output file and can quickly automate the process. 

Cons: It requires a lot of technical knowledge to operate the PowerShell scripts.

To prevent the above challenges, we suggested using an expert-recommended software. Let’s know about it quickly.

Professional Method to Divide Large CSV Files into Smaller Ones

If you’re looking for advanced and certified software that can easily automate your process with reliable and accurate results. Then we recommend using SysTools CSV Splitter tool. It’s the best solution for IT admins, professionals, experts, and other businessmen. Also, this software offers 24/7 support through live chat, calls, and email.

This permits user to:

• Split files by row count
• Split files by file size
• Maintain header rows in all split files
• Preserve data integrity
• Process multiple files in bulk

How to Divide CSV Files into Smaller Ones? Step Guide

Know how this tool works:

1. Install and run the aforementioned solution
2. Click on Add File or Folder to browse CSV file into system.
3. Select the Splitting criteria, such as by Rows or Size.
4. Choose the location path to store the output file.
5. Finally, click on Split button to start the process.

Your CSV file will get split after a few clicks without data structure loss.

Best Tips Before Dividing CSV Files

• Create a Backup: Always keep a copy of the original file.
• Check Headers: Ensure each split file contains column headers.
• Validate Data: Cross-check row counts after splitting.
• Organize Output Files: Use clear naming conventions for easy identification.
• Test Compatibility: Open split files to confirm they function correctly.

Conclusion

In this article, we’ve discovered how to divide large CSV files into smaller ones using efficient manual methods. We have also mentioned an advanced software that can easily and instantly split files into manageable parts.