Libre Office 5.4.5.1 won't install. How do I fix it?

Download completed but it won’t install

What operating system?, which language? what download have you made. Without this information it is not possible to help

Windows 10
English
I’m currently using an older version but it isn’t working well any more.

Is the English-USA or English-GB, ZA, AU etc. Which version of LibO 6.0, 5.4 etc. What specific file did you download? Where did you download it from. What message did you get? The information is still rather sparse, I am sorry to sa.