You can use CSS to change the style. If you want it to be on the same line, you can do:
<object class="contact-num" data="S:\IT\Public\Reporting\Intranet\Hotline\Hotline Guide.txt" style="font-family: Comic Sans MS"></object>
Or, for better code reading, you can put it on the style
mark on head
or link an external CSS stylesheet.
/*====================
---On <head></head>---
======================*/
<style>
.contact-num{
font-family: Arial;
}
</style>
/*==========================================================================================
---On the archive corresponding to <link rel="stylesheet" type="text/css" href="url.css">---
============================================================================================*/
.contact-num{
font-family: Arial;
}