It’s likely you will find suggestions to install some add-on. Once you can get your user’s browsers to open such links, from any simple web page you make just for a test, then you can worry about making SuiteCRM display the link.
One possibility would be this, but it really depends on which screen element you want to contain the link:
Again, this is a browser and OS issue, before it is a SuiteCRM issue.
Browsers are able to open file:// URI’s just fine.
Try typing this in your browser’s location:
Also, try putting it in Windows Start --> Run box, it should also work.
Note that the same thing as a link, might not work, due to security restrictions: file:///C:/
That’s why I said an add-on might be required. So search online for solutions tothese problems. As long as SuiteCRM gives you a link that works when typing it in your browser, or when using “Start --> Run” from Windows, then it is correct, and it’s as far as you can get with SuiteCRM only.