You can choose to exclude files of a certain mask. Maybe you want to choose *.log but exclude the month of February. Here you would enter "ex0201.log"

LogFileManager also provides a way to restrict file size. For example: If you choose a Minimum file size of '0' and a Maximum file size of '0' then LogFileManager will only select ACTIVE logfiles to report on. Since Active logfiles are held open by IIS, their reported file size is '0'. Or, you can use this feature to skip smaller file sizes, knowing that the data-transfer calculated would not be worth reporting.

Enter the Maximum file size.