Forgot how to decrypt the password when opening Excel? Xls, xlsx remove password, Excel decrypt

If you forget your Excel password, there is currently no official way to retrieve it. The only solution is to try possible passwords, and of course the number of passwords is astronomical, so many that they will not be solved for millions of years.

Depending on the complexity of the password, it is generally recommended that individuals try a password they have used before to have a certain chance of recovering it. Unless it's an encrypted Excel file, the probability of manually trying to crack it one by one is basically zero. Nowadays, most people use software to try passwords, but the efficiency of software attempts is also limited. For Office 2007 Excel files, the CPU can try about 6000 passwords per second with AMD  's 3900x. Even slightly complex passwords are basically impossible to crack. Nowadays, GPUs, or graphics cards, are generally used to try passwords. With the capabilities of AMD's flagship graphics card, it can try hundreds of thousands of passwords per second, which is dozens of times faster than a CPU, significantly increasing the probability of recovering the password.

Of course, the version of the file also limits the speed of password recovery. The difficulty of files in Office 2013 has increased more than 10 times, and even flagship graphics cards can only try 20,000 passwords per second. Using a CPU 3900X, there are only about 800 password attempts per second. Currently, Office versions mainly include 2003/2007/2010/2013/2019/2021, and higher versions of Excel. Encryption methods mainly include AES128 and AES256, with AES256 being the strongest encryption method on earth. Versions such as 2007, 2010, and 2013 use slow encryption with multiple iterations (each password verification requires multiple encryption cycles), making it almost impossible for a personal computer to recover the password.

To significantly improve decryption capabilities and recover or remove passwords in a short time, this site uses a cloud computing cluster. You can upload files to this site to quickly try to retrieve your password. With the help of this cluster, you only need one step to launch large-scale cloud computing. It adopts the most advanced password recovery technology in the world, supports multiple recovery methods, and quickly solves the problem of forgetting your password.