The first step is to put the file you need to encrypt and a regular MP3 song in the same folder. In the WinRAR main window, select file → Browse folder (pictured below)
In the second step, specify the folder in the pop-up dialog box, and then click the OK button to return to the main window.
The third step, press the CTRL key while using the left mouse button to select the files and MP3 files to encrypt, the "command" → "Add Files to Profile" (Figure 2) pops up the file name and Parameters dialog box (Figure 3) and enters the file name in the File name text box of the dialog box, in the "compression mode" Drop-down list box, select Save mode, choose not to compress, click OK to generate a compressed file.
Figure 2
Figure 3
Fourth step, click on the file, winrar will open it, and then click the right mouse button to select the pop-up menu in the "Sort" (as shown below), it is important to put your prepared MP3 files to the front of the RAR file, which is very significant, otherwise we will not succeed in this trick. Finally, the file name extension rar of the generated compressed file is modified to MP3.
Now, if someone with the mouse double click the MP3 file, it will automatically call Winamp and other software to play the song, who would not think that there should be hidden confidential documents! You want to see hidden in the secret when you can. MP3 renamed the. rar file, and then double-click the. rar file to see the file you have hidden inside. Note that confidential documents should not be too large, or a MP3 volume is too large to arouse the suspicion of others! Again, don't give. RAR plus password, otherwise renamed to. Unable to play the song after the MP3 file.