>>At the end of Text Line, in the original one there is LF and in the replaced one there is CRLF. I exactly used what was suggested.
>>If I copy and Paste from Elsewhere, I get LF at the end, but using the replace command I get CRLF
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>No way. Check attachments.

Sir, Please Check The My original File attached. It can be opened in Notepad. (Not Regular Notepad that comes with windows)
At Line No 23 the Text is to be replaced. This is not working here.