The basic rule to join files is you must download all splitted files and put all in one folder. After done, you can start join with one of these software:
1/ WinRAR (join and extract files *.part01, *.part02...; *.r01, *.r02...; *.zip, *.z01, *.z02 etc.)[Paid - Newest version is 3.90 - Homepage]: this is the most popular way to compress and split file. Just right click at any file, and choose Extract here or Extract to. You maybe asked for password to extract WinRAR files.
However, splitting and joining files with WinRAR often encounters problem such as CRC, Corrupted. If you face this problem, please read 4 ways to repair WinRAR error files.
Join and Extract Files With WinRAR
2/ HJSplit (split and join *.001, *.002,...)[FREE - Newest version: 2.4 - Homepage]: this small tool work quite fast and stable and less errors. To join, you choose Join > Input File > and choose file *.001. If you don't select output, joined file will be put in source folder. Then click Start to begin. This tool does not support password.
HJSplit Main Screen
3/ File Splitter and Joiner (join files *.001, *.002... and *.__a, *.__b...)[FREE - Newest version: 3.3 - Homepage]. To join, right click at file .001 or .__a, then choose Join. At next windows, you can select folder to store joined file, can check at Delete split parts after joining. Then click Join to start join file. You also need to input password is required.
File Splitter and Joiner Interface
