Hello @MelissaP878 ,
Are you receiving a specific error message when trying to import your file? Is it formatted exactly as presented in the examples of our article on formatting contact files, and there's no other tabs/pages on the CSV file?
We'd advise either replying directly to the automated @ mention email you receive from this thread response, or call our general support. That way you can more securely provide the contact file you're having issues with, and have us take a closer look.
Support Tips
"There's a multitude of ways to engage your audience through us using your social platforms - via ads, social post metrics, email links, and more! " - Will
See ArticleSupport Tips
"Target your most engaged contacts by creating a segment. Create a special offer or show your appreciation!" - Caitlin
See ArticleSupport Tips
"Greet new contacts with one or more automated Welcome Emails depending on their interests or your business goals." - Nick
See Article