How to get rid of red text boxes?

[ISD1997]

I have opened up this file in InDesign and these red text boxes are all over the place and won't go away. How do I solve this? They are still present when I export the document to pdf which is the annoying thing. Images attached for reference. 

Many thanks!

[BobLevine]

Looks like you bought a template with instructions as part of the file. Look on the master parent pages or a layer containing them.

[ISD1997]

Thank you! Could you please explain how I would do this? I have only just started using InDesign. 

[ISD1997]

Never mind, I've figured it out! Thank you so much for your help!