Possible Reasons and Solutions:
Copied Content from Notepad or Another Excel File
The x000D code usually appears when text is copied and pasted from Notepad to Excel or Excel to Excel.
Explanation: The x000D code represents a carriage return or line break (like pressing the “Enter” key).
Hidden Line Breaks in Cells
Sometimes, Excel cells contain hidden line breaks even if they don’t look like it.
Solution: Use Excel’s Find and Replace feature (Ctrl + H) to find _x000D_ and replace it with a blank space.
Formatting Issues from External Sources
Copying text from formatted documents (like Word or PDFs) can also add invisible characters.
Solution: Before pasting into Excel, first paste the text into Notepad to remove hidden formatting, then copy it again to Excel.