Need help to convert the following files from version 8.2 to 8.0

[Lumin Koh]

Hi. I need some help to convert the following files from version 8.2 to 8.0.
Thank you in advance ^_^

[Lumin Koh]

One more file:

[Matthew_Kelton]

Here you go.

[DSmith_1]

Hi,

If you select "File" , "Save as previos version"

I have attached a screen shot. Or do you require them to be saved in 8.0 as you do not have 8.2 ?