Break Up Large ZIP Files into Smaller Files with 7-ZIP

Instructions to Break Up a Large File into Multiple Smaller Files Using 7-Zip

Step 1: Install 7-Zip

  • Download and install 7-Zip from the official website.

  • Ensure 7-Zip is installed and accessible from your system.

Step 2: Locate the File to Split

  • Navigate to the location of the large file you want to split.

  • Right-click on the file and hover over 7-Zip in the context menu.

Step 3: Set Up the Split Operation

  • Select Add to Archive... from the 7-Zip menu.

  • In the Add to Archive window:

    • Archive Format: Choose 7z (default) or another format like zip if compatibility is needed.

    • Compression Level: Choose a compression level (e.g., Normal, Ultra). Higher compression reduces file size but takes longer.

    • Split to Volumes, Bytes:

      • Specify the size of each split part (e.g., 100M for 100 MB, 1G for 1 GB).

      • Enter the size directly or choose from the dropdown options.

Step 4: Execute the Split

  • Click OK to start the process.

  • 7-Zip creates multiple files with the same base name as the original file, followed by .001, .002, etc., indicating their sequence.

Step 5: Verify the Split Files

  • Confirm the split files are created in the target directory.

  • If needed, test the split files:

    • Select the first part (e.g., .001 file), right-click, and choose Test Archive from the 7-Zip menu.