Goal: I believe that the word Project file is appropriate for use. Rename the Project folder to the Project file.
Steps:
action: action_type: click
step_instruction: Click on the more option
action: action_type: click
step_instruction: Click on the rename option
action: action_type: input_text
text:  Project File
step_instruction: Type Project File in the tab
action: action_type: click
step_instruction: Click on the rename option