Procedure

1. In main menu, select File → New option ([Ctrl+N] on Windows/Linux, [Cmd+N] on macOS) or click the  New button from the top toolbar.
   The following dialog appears:

   
2. Use the Source Language drop-down to select the language of source text.
3. Use the Target Language drop-down to select the target language.
4. Click the Create TMX File button.
   A new file is displayed in the editing window.
5. To add new entries, click on the  Insert Translation Unit button on the top toolbar, or select Edit → Insert Translation Unit in main menu.
6. Edit cells as explained in Editing an Existing File section.
7. To save the changes made to the file, select File → Save option ([Ctrl+S] on Windows/Linux, [Cmd+S] on macOS) in main menu, or click the  Save button on the top toolbar.
8. Use the dialog that appears to indicate the name and location where the new TMX file will be saved.