In the figure above, the letter "A" points to what type of tab?

Which of the following is the file extension for a Personal Macro Workbook?

A) .xlxs B) .xlsb C) .xls D) .xltm

The ________ Record identifies the mail exchange server responsible for managing mail flow in your organization

a. SRV b. CNAME c. PTR d. None of the above