macOS · Research guidance. Instructions are based on publisher guidance; a UK IPTV account was not tested on this platform.
Locate the intended local file
Distinguish a file saved in Downloads, Documents or Desktop from a remote streaming address. Record the file’s location and the action that failed, such as opening a local subtitle or importing a configuration you are entitled to use. Avoid attaching a playlist containing credentials to a public support request.
Inspect the scoped permission
Apple documents System Settings, Privacy & Security, Files & Folders, where listed apps can be allowed or denied access to particular locations. Read the location associated with the app. A denial for one folder is more specific than a general claim that the application cannot access any file on the Mac.
Keep access tied to the task
If you choose to allow access for a trusted app, use the narrow relevant location rather than granting unrelated permissions. Apple notes that third-party collection remains governed by that party’s policies. Permission to read a folder does not explain what an application may send elsewhere, so check the publisher’s privacy information too.
Retest the same import
Return to the original file and repeat the same opening action once. If it still fails, retain the exact error and verify whether the app supports the file format. Do not move private files among several shared folders as a substitute for identifying the failure. Restoring a permission also does not repair a damaged file or create missing account access.
Questions, answered
Does one folder permission cover every Mac location?
No. Read the location-specific choices Apple exposes.
Does granting access prove the file format is supported?
No. Access and format handling are separate checks.