http://www.priasoft.com/exchangemigration/products_msg_main.asp offers a free (but rather limited in its functionality) msg-file reader (msg view tool). It's at the bottom of the left column.
http://www.encryptomatic.com/msgviewer/index.html?ref=goog&gclid=CLT_jpfB2IkCFSRZMAod6B6G1w offers the same, but only as shareware. However, you might find the free trial period long enough to do what you want.
These were sponsored links in Google, when I searched for open file type msg. They seem to be what you need. Didn't you google yourself? It's rather easy, and sometimes very useful.
An office computer that I no longer have access to was set up with MS Outlook for email. Before leaving, I saved a few emails onto my flash drive by opening/"save as"/location and then deleted the original emails. Now, at home, I discover those emails will not open with OE. I tried changing the extension from outlook's .msg to OE's .eml but it gives me a blank message. Also tried keeping ".msg" and manually opening with OE, but nothing happens.
Is there a way to open/recover these emails?