Assuming you are using Windows 10:
1) Open the document in WordPad that you want to save.
2) Click the File tab at the top-left of the window.
3) In the left column, click Save As. A new window will open.
4) In the Save as type drop-down menu, click either Rich Text Format (.rtf), Plain Text (.txt), or Web Page (.html). If you're not sure which to choose, go with Rich Text Format.
5) Choose a location on your computer where you want to save the file by clicking a folder in the left column (e.g., This PC > Desktop or This PC > Documents).
6) Enter a name for your file in the File name text box and then click Save.