It is easy to encrypt a file with Best Encryption Expert, and the encrypted files feature the highest security strength.
Method 1:
1. Right-click the file you want to encrypt and choose “Best Encryption” in the pull-down menu.
2. Set your password and select the encryption type, then click OK.
Method 2:
Start Best Encryption Expert, select the file you want to encrypt from the file-browsing window below, and click the "Encrypt Data" button. Set you password and select the encryption type in the pop-up window, and then click the Encrypt button.
Best Encryption Expert has two ways to encrypt a file: Diamond Encryprion and Portable Encryption.
Diamond- and Portable encryption use the internationally mature encryption algorithm to encrypt your data, which have the strongest encryption level.
Using the Portable encryption if you want to decrypt an encrypted file on another computer.
Related reading:
What if I forget the password of an encrypted file?
Can I move encrypted folders/files with USB devices to another computer?