Help! Question about Java Server Pages

Hi everybody!
I'm new to Java, and I wonder if anybody could help me with this:
I need to know the "extension" of this file (I don't physically have the file, I have only its contents!):
</GX>
<GX ID=Beetle>
<BR>
Thank you for choosing <GX TYPE=cell ID=common.Title></GX> for your travel arrangements<BR> <BR>
<GX TYPE=tile ID=resInfo>
Reservation Information<BR>
Reservation Number: <GX TYPE=cell ID=resInfo.recLoc></GX><BR>
</GX>
<BR>
<GX TYPE=tile ID=buyer>
Billing Address<BR>
Buyer: <GX TYPE=cell ID=buyer.name></GX><BR>
<GX TYPE=cell ID=buyer.isResPhone> Residence Phone: <GX TYPE=cell ID=buyer.rPhone></GX><BR></GX>
<GX TYPE=cell ID=buyer.isBizPhone> Business Phone: <GX TYPE=cell ID=buyer.bPhone></GX><BR></GX>
<GX TYPE=cell ID=buyer.isFaxPhone> Fax Phone: <GX TYPE=cell ID=buyer.fPhone></GX><BR></GX>
Address: <GX TYPE=cell ID=buyer.addrOne></GX><BR>
<GX TYPE=cell ID=buyer.isAddr2> <GX TYPE=cell ID=buyer.addrTwo></GX><BR></GX>
City: <GX TYPE=cell ID=buyer.city></GX><BR>
<GX TYPE=cell ID=buyer.isState> State/Province: <GX TYPE=cell ID=buyer.state></GX><BR></GX>
Country: <GX TYPE=cell ID=buyer.country></GX><BR>
<GX TYPE=cell ID=buyer.isPostal> Postal/Zip Code: <GX TYPE=cell ID=buyer.postal></GX><BR></GX>
</GX><GX VISIBLE=false>  </GX>"
After many searches on the web, I can't find out if it's a HTML or GXML template, or if it has to do with JSP (is it a .jsp web page?)
Thanks in advance!

Thanks very much both of you for your prompt help!
I had already found this link but now with your explanations, it seems a bit clearer now...
After another search, it seems that this file is a HTML or GXML template to be rendered by a template engine (I've read that GXML templates only contain GX tags like my file) . Does it sound familiar to you?
I need now to know which extension would have this file it is were like I believe a HTML or GXML template? Will it have simply a .html or .gxml suffix?
Many thanks in advance!

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res sir,
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Question# 1
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message
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4. �Manager�. This part will always check �data
storage� for new data and �processor� for
availability. When �processor� and new data are
available �manager� will make an order for
�processor� to take new data from �data storage� and
process it.It's redundand component, because application server will manage messages and processors.

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