How do I find the newline type (e.g. CR, LF, CR+LF) for each line?

There are a few different ways to achieve this.

To display the newline character info in a dialog box

Put your cursor at the end of a line and go to View | Character Code Value… (Ctrl+I).

To display the newline character in the status bar

Go to Tools | Customize…, and open the Status page. In the Status list, check Character Code at Cursor. Click OK. The character code of the character at the cursor will be displayed in the status bar.

To show the newline type on each line

Go to Tools | Properties for Current Configuration and open the Marks page. Check Show Newline Characters and Show CR and LF with Different Marks. The marks at the end of each line indicates the newline type.