Heya -
If your company has g-suite you can use import csv. https://help.loyverse.com/help/how-open-csv-file-google-sheets bonus being that google sheets is quite smart at recognising the phone numbers. I don't recommend your personal Gmail account for handling sensitive information
On 'numbers' which is the standard mac application:
Open the .csv file in a text editor like TextEdit on Mac.
Do a find&replace. Find "," and replace with ";" .
Save the .csv file.
Drag-and-drop the file onto the Numbers app icon.
Apple Numbers displays the data in a new sheet.
Alternatively, the best way would not have to edit it. If I see a new variation of field name come across I'll always add it to the list import alias within-field management (under admin) I find this a tad quicker than having to map it on upload.
Hope that helps
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