How to extract files from a split 7zip archive?

Install 7zip from the Ubuntu Software Center.

Command-line solution:

In terminal, cd to the directory that contains the volumes and run 7z command on the first file from the sequence:

cd ~/Downloads
7z x asdf.iso.0

7zip should notice that you have a multi-volume archive and unpack everything. If you want the directory structure flattened, use 7z e instead of 7z x.

GUI Solution

• Right-click the first package of those you downloaded (eg file.zip.001).

• Select "Extract Here".

Using 7zip to extract iso file is extremely simple even it has multiple parts. Let's assume you have an iso archive with three parts named by a.iso.001, a.iso.002, a.iso.003.

The standard command line is in this way:

7z x a.iso.001 -tiso.split -o<output_dir>

or

7z x a.iso.001 -tudf.split -o<output_dir>

Passing the -t flag with the "split" indication will specifically tell 7z that the iso has multi-parts, the preceding "iso" or "udf" will depend on your iso container format.

Install 7zip, if its not installed, using this command:

sudo apt install p7zip-full

Now move to directory which contains split files and run this:

7z e file.ova.7z.1