ColdFusion allow user to download CSV file

Question

I am trying to allow the user to download a CSV file from the app. I have googled this a lot and as with almost any coldfusion issue I can't find much. Here is what I am trying:

<cfset yourFileName="\\10.21.2.187\devintranet\WebSite\Audit_Web\AuditWeb\temp\file.csv">
<cffile action="read" file="#yourFileName#" variable="myFile">

<cfheader name="content-disposition" value="attachment; filename=#listLast(myFile, "\")# />
<cfcontent type="application/msexcel" variable="#myFile#" reset="true" />

This is the correct filepath:

temp/file.csv

and this is the file name:

Right now I am getting the error: 403 forbidden. I have no idea what is wrong and what is right about this. I'm just using code I found online. Any advice at all would be greatly appreciated.