Want to know how to concatenate CSV files in Windows? This blog will explain how users can easily consolidate two CSV files into one using Microsoft Excel, by Command Prompt (CMD), PowerShell, and professional software effectively without losing data integrity.

These CSV files are used to save and handle large data in structured format as they are very light in weight, simple, and universally acceptable among several platforms. However, working with several files becomes challenging for user to manage. This is why many users search for a smart and accurate solution to compress CSV file size by consolidating them into one.

Concatenating multiple CSV files helps users to feel at ease when filtering, sorting, making instant reports, analysis work without moving from one file to another.

What You’ll Learn Hide
  1. Why Users Need to Consolidate Two CSV Files in Windows?
  2. How to Concatenate CSV Files in Windows? 4 Tested Methods
  3. Which Method is Best to Concatenate CSV Data Files in Windows?
  4. Practices for Consolidating CSV Files Without Data Loss
  5. Conclusion

 
If you are also searching for same, then this article will cover and explain all approaches that include both manual and automated solutions. Additionally, some advanced practices for managing large datasets to prevent errors in future. Let’s get to article.

Why Users Need to Consolidate Two CSV Files in Windows?

Here are some reasons listed below to concatenate multiple CSV files.

  1. This helps to centralize cluttered information from multiple files into single file.
  2. Allows users to create consolidated file that is easier to import into different applications or programs.
  3. Users can check and preview CSV files without even opening them.
  4. It also helps to reduce duplicate workflows, such as copying and pasting.
  5. This enhances human efficiency when large CSV data is in concatenated format.

Now, it is time to move towards proven methods for combining data.

How to Concatenate CSV Files in Windows? 4 Tested Methods

In this following section, we have explained quick and easy approaches to consolidate two CSV files into one. One can choose a method among them according to their convenience, data size, technical skills, etc. Here are some troubleshooting methods listed below with brief explanations.

  1. Use Dedicated Desktop Software by SysTools – Most Recommended
  2. Test Command Prompt (CMD)
  3. Using PowerShell
  4. And, try Microsoft Excel

Let’s quickly walk through them.

How to Concatenate CSV Files in Windows Using Automated Tool

If you are dealing with large or multiple CSV data files and want to concatenate them but do not have technical knowledge, download SysTools CSV Merger Tool. This dedicated software is only automated desktop based tool that does not require network connection to launch.

 
This professional software offers several options that permit you to combine as well as split CSV files into multiple files without opening them. It also has simple user interface, which makes great option for both home users and experts. Additionally, its demo version is available for free to all to consolidate CSV files into one. So, quickly download it now to unlock more features.

Instant Steps to Consolidate Two CSV Files

Follow these quick working steps to concatenate CSV files in Windows. Download it using given buttons above.

  1. After setting up software, launch professional tool and choose Merge CSV option.

    2. merge CSV

  2. Choose Add Files & Folder button to browse CSV files from your local system.

    3. add CSV files

  3. Now, press Next button after checking all CSV files added in utility interface.

    4. next

  4. Select Primary file option and choose Destination path to save concatenated CSV file.

    5. advanced settings

  5. Finally, click OK button to begin concatenate CSV files in Windows.

    6. ok

Method 2: Try Command Prompt (CMD) to Consolidate Multiple CSV Files

CMD is built in program offered by Windows itself that allows users to combine data from their CSV files without installing any other software. This is useful for those who understand how to manage CSV files with technicalities.

Steps:

  1. Place all CSV data files in same folder you want to concatenate.
  2. Open folder that contains your CSV files.
  3. Now, press Windows+R button and type “cmd” and enter it.
  4. Paste this given command into CMD interface.
    5. copy *.CSV combinedfile.CSV
  5. Click Enter to run command to consolidate CSV files.
  6. At last, open folder and search for combinedfile.csv. Check it once by opening it.
Limits:

  • It is not recommended for home users as it is very complicated and needs technical knowledge.
  • There is high chance of creating duplicate data in CSV files.
  • Does not maintain CSV structure in its original manner.

Method 3: Concatenate CSV Files in Windows Using PowerShell

This method is also provided by Windows, which offers more control over CSV data than CMD solution. Let’s check how it works.

Steps:

  1. Put all your CSV files in newly created folder.
  2. Click Windows+R and type PowerShell and enter it.
  3. Now, copy this following script and paste it into system.
    4. Get-ChildItem *.CSV | ForEach-Object {
Import-CSV $_ } | Export-CSV mergedfile.CSV -NoTypeInformation
  4. Wait for some time until all your CSVs are processed.
  5. Open CSV folder and locate mergedfile.csv.
  6. Check if your output is preserved in its original format.
Limits:

  • Requires basic technical skills to operate PowerShell.
  • Does not maintain CSV format and its data hierarchy
  • Time taking process when previewing data before combining.

Method 4: Use MS Excel to Consolidate Two CSV Files into One

MS Excel is very helpful for those who want to preview their data before concatenating CSV files in Windows. Also, it is great option when working on small CSV dataset.

Steps:

  1. Open Excel on your Windows system.
  2. Choose File > Open and upload your first CSV file.
  3. Now, open second CSV file in new sheet.
  4. Select and copy all data from second CSV file using CTRL+C.
  5. Now, open your first CSV and select row below your existing data.
  6. Paste all CSV data in same place using CTRL+V.
  7. Repeat the same process for remaining CSV files.
  8. After doing, check your CSV once to confirm all data.
  9. Choose File > Save As option to store as combined.csv data file.
Limits:

  • Very time taking process to consolidate multiple CSV files into one.
  • One cannot upload CSV data beyond Excel row limit.
  • There is risk of losing data when selecting data manually from multiple files.

Which Method is Best to Concatenate CSV Files in Windows?

Features Command Prompt (CMD) PowerShell Microsoft Excel SysTools Professional Software
Ease to Operate Yes No Yes Yes (User Friendly Interface)
Large CSV Files Depends Depends Limited Yes
Technical Skils Required Required Required No
Multiple CSV Files Yes Yes No Yes (Bulk Processing)
Installation Needed No No No Yes
Automatic Header Handling No Depends Depends Yes
Secure & Privacy No No No Yes (100% Offline Software)
Data Structure Depends Depends Might Change Maintained

Practices for Consolidating CSV Files Without Data Loss

After merging all data, users are advised to follow these best tips before concatenating CSV files in future.

  1. Always keep backup to protect your data from accidental data loss
  2. Check your concatenated CSV files once to verify their original structure.
  3. Make sure that your files are correct with all delimiters and commas.
  4. Try not to overwrite new CSV with your existing CSV data file.
  5. Use advanced software by SysTools to concatenate CSV files in Windows.

Conlucison

In this article, we have covered how to concatenate CSV files in Windows without losing data. We mentioned some effective solutions to help users manage their data more accurately. Instead of choosing Command Prompt (CMD), MS Excel, or PowerShell to consolidate two CSV files into one, we recommend using professional software by SysTools.

By comparing all methods explained above, this is best approach that can easily combine your CSV data while keeping data structure intact. If still facing any query, then contact our support team via 24/7 live chat.