i changed a pdf file in to a word file how can i change it back to a
pdf file in microsoft outlook.

Also i could not read the file in word Please Help

Sounds like you either renamed the file or associated PDF files with Word.

Either way, save the file to your desktop. Right click and go to properties.
If Type of file says that it's a PDF and Opens With is Word, then click change
and change it back to Adobe.

And if you renamed it, just change the extension back.

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-f.h.