.7z is one of the best compressed file formats created with the renowned 7-Zip tool. This file format features relatively higher compression as compared to some other popular formats e.g. RAR, ZIP, etc. and comes with many other advantages like encryption, splitting, password protection, and more. However, just like other compressed file formats, .7z files can also get corrupted resulting in 7 zip data error while extracting. There could be a number of reasons behind data corruption but the good news is, you can fix 7 zip data error in most cases. Read on to learn about the different ways to fix the error.