It sounds as though you are copying the file manager listing for the file, rather than the file's contents. If so:
1. Open the source document in any convenient text editor.
2. Press Ctrl+A to select all the text in the document.
3. Pres Ctrl+C to copy the document's contents onto your system clipboard.
4. Move to the destination document or Web page.
5. Press Ctrl+V to paste the clipboard contents into the destination.
It sounds as though you are copying the file manager listing for the file, rather than the file's contents. If so:
1. Open the source document in any convenient text editor.
2. Press Ctrl+A to select all the text in the document.
3. Pres Ctrl+C to copy the document's contents onto your system clipboard.
4. Move to the destination document or Web page.
5. Press Ctrl+V to paste the clipboard contents into the destination.