How to convert a .stp file extension to .prt

Written by ryan casima
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Changing the file extension of a file will change the way the computer opens the program. For example, if you change the a ".mpeg" file, which is a video clip file, to ".txt," which is a text (Word) document, the file will be opened by Wordpad or Notepad instead of a video playing program, such as RealPlayer. The data of the program, however, is not changed if you modify the file extension.

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  1. 1

    Find the folder that has the .stp file in it and open it.

  2. 2

    Locate the "Tools" toolbar on the page, which is on the toolbar near the top of the window, and expand it. Select the "Folder Options."

  3. 3

    Click "View" in the folder options and then unmark the box next to "Hide file extensions for known file types." Click "OK" to save the changes.

  4. 4

    Go back to the folder and right-click the .stp file. Open the renaming tool and replace the letters ".stp" with ".Prt." A prompt will appear asking you if you are sure that you want to change the file extensions as it may change the way that the file is opened. Click "Yes" in the prompt.

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