Paste from other doc and become large block

Hi, I have this Arabic text in txt file, and I want to have it in logseq so I pasted the text inside the logseq and this happened…

I now cannot do anything with it.
what to do?

you should split the text in more blocks

like how to do it?

Right click on the page title, select “Open with Default App”. Once the page opens on, you can select the first chapter and then create a new page in logseq with it.
You will end up with multiple pages for this content which you can organize via a map/table of content, or namespace.