How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Mike Your Own Question

Mike, Mac Medic
Category: Mac
Satisfied Customers: 8204
Experience:  Over 20 years IT experience with Apple computers in publishing, marketing and design.
Type Your Mac Question Here...
Mike is online now
A new question is answered every 9 seconds

I have a list of 400+ people with their telephone numbers in

Customer Question

I have a list of 400+ people with their telephone numbers in column B, and the list keeps growing. Is there an easy way to find out if i already have a number on my list? Or if i duplicated it ? I used to use Find, which was fine when the list was short. Please help me.
Submitted: 4 months ago.
Category: Mac
Expert:  Jason Jones replied 4 months ago.


I am the person that will be helping you today.

May I ask which version of Excel you are using?

I will be standing by, looking forward to your response.

Thank you,