To turn numbers in the phone number format, you do not need to type one by one, there is an easy way to format the way you want. Please follow the steps below:
Step 1: Select the data range;
Step 2: Right-click to bring up the dialog box, click "Format Cells" from the list;
Step 3: In the "Format Cells" window, click "Special" from the left navigation, then click "Phone Number" in the dialog box;
Step 4: Click "OK" at the bottom.