How To

How to split up a large file with WinRAR

How to split up a large file with WinRAR
Russell Kidson

Russell Kidson

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There are so many reasons that WinRAR is regarded as one of the best file compression tools to have at your disposal. One of those reasons is that you can use one to split up large files into several smaller ones. This is particularly useful if you intend to distribute files and want to make them easier for a recipient to download.


It’s so easy to use WinRAR to split up big files that it only takes three simple steps. So sit back and relax as we compress the three easy steps of decompressing large files.

Splitting up large files with WinRAR

Before you can make use of the exceptional compression and decompression power, you need to download WinRAR. As with all software that we review, we have a handy link that will take you directly to the download page. Once you’re on the download page, all you need to do is choose a version of WinRAR compatible with your operating system and click download.

The installation process is criminally easy and only requires you to accept an end-user license agreement and select an installation location on your device’s hard drive. WinRAR is a premium software, but you do have a limited time-free testing period within which you can use the software and decide if you want to buy it outright. With that little bit of administration handled, let’s get into the three simple steps of using WinRAR to decompress large files.

  1. Location, location, location

    How to split up a large file with WinRAR

    The first step to splitting up large files with WinRAR once you’ve downloaded the utility is to locate the file you’d like to split. Once you’ve located your file, right-click on it and select Open With, and then choose WinRAR from the list of associated apps. In WinRAR, head up to the toolbar and hit Add to add the file to a new archive. You could also select Add to Archive from the right-click context menu as a shortcut.

  2. Compress

    How to split up a large file with WinRAR

    You should now see an archive name and parameters interface. This is where you’ll be able to choose how small to make each file and define any other parameters you’d like to apply to the archive.

    First, rename your archive. If you don’t want to choose another name, you’ll see WinRAR has already suggested a name for the new archive.

    Next, head to Archive format and choose whether you’d like the new archive to be saved as a .rar, .rar4, or .zip

    Lastly, you’ll need to head to Split to volumes, size, and then define how large to make each individual smaller file. You can also select a volume from the drop-down list. Once you’ve set the necessary parameters, click OK, and your folder will be split up and filed in the newly-defined archive.

  3. Extract

    How to split up a large file with WinRAR

    This last step will take place on your target device. All you need to do is extract the compressed file as you usually would, and you’ll see that the original file has been split into smaller files for easier transmission. 

    Pro tip: If you intend for the new archive to be functional on computers that don’t have WinRAR installed, save your archive as .zip. While .rar can only be opened and extracted by WinRAR, .zip can be extracted by any archive tool, such as 7zip, a free alternative to WinRAR.

Get the most out of file compression

Even though WinRAR is a premium software and you need to pay for access to advanced features like splitting files by volume, this is still one of the best file compression utilities in use. In fact, WinRAR has been one of the most popular utilities for file compression and decompression since before the glory days of Windows XP. Sadly though, WinRAR no longer carries support for devices running on the now outdated Windows XP OS.

On the brighter side, though, WinRAR has recently undergone a rather extensive update that has resulted in the utility performing better than before on Windows 11. This update is also one of many that the utility has undergone since 2019, when a 20-year-old WinRAR vulnerability was identified that could give third-party threat actors complete control over a victim’s computer.

To get the most out of this file compression program, check some of our other guides:

Russell Kidson

Russell Kidson

I hail from the awe-inspiring beauty of South Africa. Born and raised in Pretoria, I've always had a deep interest in local history, particularly conflicts, architecture, and our country's rich past of being a plaything for European aristocracy. 'Tis an attempt at humor. My interest in history has since translated into hours at a time researching everything from the many reasons the Titanic sank (really, it's a wonder she ever left Belfast) to why Minecraft is such a feat of human technological accomplishment. I am an avid video gamer (Sims 4 definitely counts as video gaming, I checked) and particularly enjoy playing the part of a relatively benign overlord in Minecraft. I enjoy the diverse experiences gaming offers the player. Within the space of a few hours, a player can go from having a career as an interior decorator in Sims, to training as an archer under Niruin in Skyrim. I believe video games have so much more to teach humanity about community, kindness, and loyalty, and I enjoy the opportunity to bring concepts of the like into literary pieces.

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