Save TArray to text file

have you searched for the file?

reading over the code I would expect it to land somewhere else since you are not using dir to save it

	const FString OutputDirectory = FPaths::Combine(*FPaths::ProjectDir(), TEXT("Saved"), TEXT("TimedDataMonitor"));
	const FString Filename = TEXT("SomeName")
	const FString FullyQualifiedFileNameFilename = FPaths::Combine(OutputDirectory, Filename);
	FFileHelper::SaveStringArrayToFile(Item.Value.Entries, *FullyQualifiedFileNameFilename);

example modivied from unreal code in
void UTimedDataMonitorSubsystem::UpdateStatFileLoggingState()