Click the File Manager link in the Files module. A new browser opens to the File Manager.
Click the Folder (in the left column) where the file is located and then click the File Name to rename (on the right side), ensure the file row is highlighted. Note: You can also right-click with your mouse on the file you want to rename.
Click the Rename button. A modal opens to rename the file.
Enter a New File name in the textbox. Important: Ensure the file name extension remains; if removed, the file may not function.
Click the Rename File button.
Tip: Be sure your new file name doesn't contain any special characters, symbols, or spaces. File names can contain only contain upper or lowercase letters, numbers, underscores, dashes, and periods, and cannot start with a period.