After the folder where the excel worksheet is encrypted and used for a period of time, all the files displayed are garbled when opened. This is because you are using the efs encryption that comes with the system. After EFS encryption, you need to back up the encryption certificate. If you do not back up the Certificate, the file cannot be opened after reinstalling the system or changing users. If your backup has an encryption certificate, you can import the certificate and then decrypt it. If there is no backup, there is nothing you can do.

It is recommended that you choose professional encryption software such as Folder Encryption Super Master when choosing encryption software in the future.

Folder Encryption Super Master has six major advantages.

1. Has a digital signature certificate certified by Microsoft

2. Is a security certification manufacturer of 360

3. The folder encryption super master has logged into Baidu’s open Search platform.

A developer of security software tools with 4.8 years of growth.

5. Folder Encryption Super Master software has tens of millions of users.

6. Have perfect customer service.

In order to have a very complete after-sales service system after your files are encrypted, please use Folder Encryption Super Master to encrypt your files.