Magnetic Component Engineering



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Sending Files via E-Mail

There are continuous threats of being infected by a virus over the internet. In spite of tremendous efforts that we have implemented, we still get infected a few times a year.

Typically, viruses are transmitted using extensions such as .zip and .exe. These are generally received from unknown sources. Our IT Department has come up with an innovative method of preventing almost all viruses. They have blocked all extensions coming into our servers except for a few, such as .pdf. They have also blocked active-x controls. They have, however, allowed another extension, .mce, to pass freely. The extension .mce is not used by any program, and therefore, cannot self execute, making it safe to receive.

When sending us a file, follow this procedure:

  1. Rename the file by appending the extension .mce.
    Drawing334.dwg would become Drawing334.dwg.mce somedocument.doc would become somedocument.doc.mce
    would become 
  2. Send the file to MCE via e-mail.
  3. MCE will remove the .mce, open, and confirm successfully receiving and opening the file.

How to change a file extension

  1. Open Windows Explorer.
  2. Click on Tools/Folder Options.
  3. A Folder Options window will open - Click on the View tab.
  4. Under "Advanced Settings" the first folder that appears is "files and folders". Below this there is a checkbox for "Hide extensions of known filetypes". Make sure this checkbox is UNCHECKED.
  5. Now click on the OK button. You should now be able to see the file extensions.
  6. Locate the file that you wish to send.
  7. Right-Click on this file, and select "Rename".
  8. Now add .mce at the end of the extension. See examples above.
  9. Now send this file to MCE via e-mail.

How to change a file extension on your desktop

  1. Save the file to your desktop.
  2. Right-Click on the file and select "Rename".
  3. Add the .mce extension.  You may get a warning saying that changing the extension can make the file unstable; select "Yes" so that the changes do apply.
  4. Now send this file to MCE by copying to your e-mail.