I am implementing a file provider based on NSFileProviderReplicatedExtension on macOS. Currently I am working on the download of remote dataless files which works fine so far. It is materialized and available locally and the related NSFileProviderItem object I provide to the system returns true for isDownloaded and isMostRecentVersionDownloaded. When I open the plain text file in Finder in TextEdit, then it is actually opened by the app but almost immediately the system also calls fetchContents(...) on my extension object. I do not understand why because there is no need to fetch the contents. I tried various ways to call the mandatory completion handler of fetchContents(...), but apparently either a URL to a local content file and the NSFileProviderItem have to be provided or an Error. Note: When opening the plain text file through Finder in TextEdit the modifyItem(...) function on my file provider extension is called, too, to update the .lastUsedDate. In that completion handler I provide false as the argument which tells the system to request the item contents. How can I make clear that the system should not call fetchContents(...) for already downloaded files over and over again?