Body Copy is the name for the main content area of most sites. Editing the Body Copy works much like a Word document thanks to the formatting tools included with the Editor Toolbar (ex: bold, italic, underline, alignment, insert links, etc.).
Copying content from Microsoft Word can occasionally have unexpected results, bringing unnecessary formatting and code along when pasted into Drupal's text editor.
If this becomes and issue, the Paste from Word tool can help remove the extra formatting. If that fails to resolve the issue, try the Paste as Plain Text tool