@Thomas-Shelby
You are possibly asking someone who hasn’t been on the forum for a long time, and the post is really old as well.
Why don’t you just explain the issue you are having and maybe a current forum member can help you?
We’d need to know the file type (normally the file extension) as that can have a bearing on the issue. Also where it’s located. Consider copying that file to a folder close to the root (something like C:\temp folder) and see if it opens.
What happens when you try to open the file?
Terry