Archives, broken into pieces, are encountered all the time today, and, it happens, confuse inexperienced users. However, the process of merging files will not be a problem for you if you have special programs at hand.
Necessary
PC with Winrar or 7-zip installed, multivolume archive
Instructions
Step 1
If WinRar is installed on your computer, then you can use the most popular program for solving such problems. To do this, place all parts of the archive in one folder, select the first one and right-click on it. Then select Extract to Current Folder from the menu. After that, WinRar will determine that all parts of the archive are one and collect it automatically.
Step 2
It happens that a multivolume archive is damaged and it is impossible to collect it. In this case, you can also use the help of the Winrar program and try to restore it. To do this, run this program and find the damaged file. Select it and click the "Fix" button in the top panel, you can also recognize it by the image of the first-aid kit. After that WinRar will start recovering the file, and if the damage is not too serious, it succeeds.
Step 3
There are also alternative programs for solving such problems - one of the most popular is 7-zip. It is free, and working with it will not differ much from the previous example. In order to collect the archive, place all files in one folder, as is the case with WinRar. Then select the first file and right-click. A context menu will appear - select the 7-zip item in it, then "Unpack here", after which the archive will be merged.
Step 4
When working with multivolume archives, you should not make mistakes common to novice users. First of all, before the process of merging files, check if you have all the parts. A distinctive feature of the last part is that its size will always be less than the size of the rest of the archives. On this basis, you can easily determine the presence of all volumes. Also, if after unpacking you come across a file with the iso extension, you should not unpack it, despite the fact that it looks like an archive - this is a special file that can be opened using programs that work with disk images.