It is a pretty unknown trick to create hidden text files using nothing but Notepad, you can use this simple trick to hide plain text data without using any third-party utility.The text files created using the method below won't show anywhere in DOS or Windows irrespective of the hidden and system display file-settings, the files created using this can only be accessed if you know the correct file-name used while creating the file.Follow the steps :

- Launch Windows command prompt from Start Menu -> Run -> Type cmd and press Enter.

- Using DOS commands navigate to the desired folder.

- Now type in notepad VisibleFile.txt:HiddenFile.txt and hit Enter, you can change
VisibleFile.txt and HiddenFile.txt to names of your choice (notice the : between both file-names), You will be prompted to Create a New file click Yes.

- Now enter data you want to hide, save the file and close notepad.

- Visit the file-save location, you will see your VisibleFile.txt file (non-hidden) there, you can open the file and enter any text of your choice as any other normal text file.

- The hidden file HiddenFile.txt will not be visible under Windows Explorer or DOS.

- To open and read/write your hidden file, type in the command notepad VisibleFile.txt:HiddenFile.txt (change filenames with your own used during Step 3 above) at DOS command prompt and hit Enter.

Note : If the visible file (VisibleFile.txt) is deleted your hidden file (HiddenFile.txt) will also get deleted.