What in the world is a .el8 file?

What in the world is a .el8 file?

I am taking an online Latin class, and they gave me a video to watch.
A .el8.
What? el8? I have never heard of that in my life. It's supposed to be a
video, so I tried renaming it to a .mov (Latin teachers not being known
for computational excellence), but no dice.
I'm running OS X 10.8. How do I open this thing?
Running file on it shows:
/Users/admin/Desktop/U734806R4970S3962792726.mov: data
And the first few lines of looking at it in vi are as follows:
^@^@^@^@^[U734806R4970S3962792726.el8T^L°w<80> ú#^?^G^@^@<88>
ú#Ä^@#^@ÀÚ°wsÒѳ^@^@#^@^@
^@^@x^@ú#^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@üîÓ^P^Kê°wvp³wgÒѳ^@^@#^@^@^@^@^@^@^@^@^@
-#^@^@^@^@^@^B^D^@^@à(D
^@^@^@^@^PÖh
^@^@#^@^B^D#%^@^@^@^@
-#^@þ^C^@^@TïÓ^Pðo³w^@^@^@^@^@^@#^@^@^@#^@ø;^@^@ÿ<9e>iê^DÀCä@âQ<8c>PÂCä@5^X^@^@^R7
^A^@^@^@ÔîÓ^P>^\±w^@^@#^@à(D^@^@^@^@^@^@^@^@^@^@^@#^@à(D
^@^@#^@þ^C^@ý^D^@^@^@^XÖh
^XÖh
¸c0
þ^C^@^@~^C^@^@ÌïÓ^P×<93>³w^@^@#^@à(D
^@^H^@^@¢s³wWÓѳ^@^@^@^@^@^@#^@è(D
<82>^C^@^@H.V
¨$î#^P ^@^@<94><82>¯w§Óѳ^B^D^@^@0.#^@^@^@^@^@^@^@#^@^PïÓ^P -#^@hïÓ^P^XÖh
H.V
xïÓ^P<9b><82>¯^@^@^@^@^@^@çiv^XÖh
^C^@^@^@<84>ïÓ^Phã°w0^A#^@¨^Fÿ^@þÿÿÿ¢s³wÕs³w^@^@^@^@^XÖh
<94><82>¯w?Óѳ^@^H^@^@è(D
^@^@^@^@^@^@^@^@ò½^@^@;C:\eLecta\Server\TempRecordings\U734806R4970S3962792726.el8¢s³wÕs³w^@^@^@^@è(D