These errors are usually the result of file formatting problems, and can most often be resolved by re-saving the file to a different file type.  The preferred file format for Mojo imports is a comma separated value (*.csv) or a Microsoft Excel (*.xls, *xlsx) file type. 

If the file type is not the problem, check your file for the following:

• Each phone number must be contained within one cell (i.e., 5555555555 not the area code in one cell and the rest of the number in another cell)
• All phone numbers must be in the same format either 5555555555 or (555) 555-5555
• Do not use 1+ in front of phone numbers
• Address data must be contained in one cell (number, direction, and street name contained within one cell)
• File size for imports is limited to less than 5 MB (split the file if necessary)
• File data should be left-justified in the cells
• Special characters in the data may cause problems (remove all special characters where possible)

If you are still having problems with your import, please open a ticket with our Mojo support staff.