Within Teamwork, you can rename existing files on your projects.
In the Files area of your project, hover over a file to reveal the additional file options.
Click the arrow button and select Edit File Details from the dropdown menu.
In the file details modal, you can enter a new display name for the file. The file extension (ex. jpg/pdf/docx) is kept automatically.
Note: Renaming a file from a linked storage account (ex. Google Drive) only updates the file's name in Teamwork.
For more information, see: Editing File Privacy