In daily work, Excel** is used quite frequently, and in order to protect important data, many people will choose to encrypt Excel files. However, what should you do when you forget your password or need to unencrypt it?
1. Understand the types of encryption.
Before you unencrypt excel, you first need to understand the types of encryption. At present, there are two main encryption methods in Excel:Password protection and VBA macro encryption。Password protection is the most common form of encryption and protects data by setting an open password for a file or changing a password. VBA macro encryption encrypts files by writing VBA**, which is relatively complex but more secure.
2. Remove password protection.
Use a known password: If you know the encryption password, it's very easy to unencrypt it. Just open the excel file and enter the password to unprotect it.
Use a password recovery toolIf you have forgotten your password, you can use a professional password recovery tool to try to retrieve it. These tools often use methods such as brute force or dictionary attacks to retrieve passwords. However, it is important to note that this method may take time and is not guaranteed to be 100% successful.
3. Disable VBA macro encryption.
Check out the VBA**First, you need to open an Excel file with VBA macros. Then, press the Alt + F11 keys to open the VBA editor. In the editor, you can view and edit VBA.
Remove or modify encryption**: Find the ** segment related to encryption and delete or modify it. Save the modified file to remove VBA macro encryption. It should be noted that modifying VBA** may cause file corruption or data loss, so please make a backup before operation.
Fourth, prevent the recurrence of encryption problems.
Set a strong password: To avoid forgetting your password, it is recommended to set a strong password that is easy to remember. Using a combination of numbers, letters, and special characters can improve the security of your password.
Back up your files regularly: Regardless of the encryption method, it is important to back up your Excel file regularly. In this way, you can recover data from the backup file even in the event of a forgotten password or a corrupted file.
Use professional encryption tools: If you need a higher level of protection for your Excel files, you can consider using a professional file encryption tool. These tools often offer stronger encryption algorithms and security to ensure the safety of your files.
Restrict access: For Excel files that contain sensitive information, you can restrict unauthorized access by setting access permissions. For example, you can set that only specific users or groups of users can open or modify files.
You can easily break through the Excel crypto puzzle by understanding the types of encryption, using password recovery tools, viewing and modifying VBA**, and more. At the same time, to prevent encryption issues from recurring, we also provide recommendations for setting strong passwords, backing up files regularly, using professional encryption tools, and restricting access. Hope this information is helpful to you!