OpenOffice Problems

Dear OpenOffice, I spot so many problems when I was using OpenOffice. On the text document of the same file, some of the incorrect spelling is detected by a red, squiggly line below the incorrectly spelled word, but on the same file, some of the incorrect spelling is not detected by n

[AOO-Templates]

How can I use the templates that I downloaded from the website, after I download and I cant open and the program will not open them Sent from Mail for Windows 10