Using classic Outlook for Windows in business environments
Thank you, I clicked the box and then the map custom fields. This took me to another window which requested mapping each line item into a custom field. I think there are about 4000 rows in the csv file.
It's not the rows that are the problem - it's the field names in the first row. Those need mapped to Outlook field names.
Open the CSV in note pad. The first row should have fields like First Name,Middle Name,Last Name,Title,Suffix,Nickname.... (they may have double quotes around the words.) Those need mapped.
If the first line is a contacts name, open the file in excel and add a blank line at the top then add the field names. If you use the ones Outlook uses, they will be mapped automatically.
These are the correct ones for Outlook - First Name,Middle Name,Last Name,Title,Suffix,Nickname,Given Yomi,Surname Yomi, E-mail Address,E-mail 2 Address,E-mail 3 Address, Home Phone,Home Phone 2,Business Phone,Business Phone 2,Mobile Phone,Car Phone,Other Phone,Primary Phone,Pager,Business Fax,Home Fax,Other Fax,Company Main Phone,Callback,Radio Phone,Telex,TTY/TDD Phone, imAddress,Job Title,Department,Company,Office Location, Manager's Name,Assistant's Name,Assistant's Phone,Company Yomi, Business Street,Business City,Business State,Business Postal Code,Business Country/Region,Home Street,Home City,Home State,Home Postal Code,Home Country/Region, Other Street,Other City,Other State,Other Postal Code,Other Country/Region, Personal Web Page,Spouse,Schools,Hobby,Location,Web Page,Birthday,Anniversary,Notes