How to correct "weekend" status on working days

How to correct "weekend" status on working days

Hi

I am trying to run accurate reports on attendance and have run into an issue. For some reason, the working days I have defined are showing that the employee is on Weekend,Present M-F, and of course is adding it to TOIL. M-F should be workday, or weekday, present or absent NOT weekend. Where do I make the setting correction to update this. Thank You.