At first, you have to open the MP3 or other audio or video file. To do that press on the "Open" button of the toolbar or select "Open" from the "File" menu.
You can also drag and drop the audio or video file to open it.
Step 2 - Select the part of the MP3 file which you want to cut, copy, or delete
Secondly, select the part of the MP3 file you want to cut, copy or delete.
You can do this by selecting the part of the MP3 file's waveform.
Alternatively, if you know the start and end time or duration of the desired part, enter the start time, end time or duration in the appropriate text boxes.
Step 3 - Cut, Copy , Paste , Delete
Now press on the appropriate "Cut", "Copy", "Paste", "Delete" buttons of the toolbar.
Alternatively, you can select the action from the "Edit" menu.
To paste a part of the MP3 file, after copying it to the clipboard, you have to click on the position you want to paste
it. You can also specify and go to the desired position by selecting "Go To" from the "Edit" menu.
Step 4 - Specify Output Format Settings
Press on the "Output Format" button to specify various output format settings or leave the default ones.
Step 5 - Get the Result
Lastly, select "Save Whole Clip" from the "Cut" menu to get the result file.
In case, you want only a part of the MP3 file, after selecting it, you can choose also "Cut Only Selection" from the "Cut" menu.