How can I add validation for columns in a table?

In my form, I have a table with columns like Name, Phone Number, Email Address and Fax Number.

This table has about 4 rows. How can I set validation for these columns, so that only valid email address is entered, similarly only numeric value is entered for mobile number?

Also is it possible to check number length for phone number, to check if its a valid phone number?

Hi,

Unfortunately, adding validation on a specific column on matrix is not applicable. You will need custom program code for this to work. As a workaround, you may need to create each cell on the matrix field into separate fields. 

Do let us know if you need further assistance.

Regards.