Hello @HaleySunde ,
Is the file you're using formatted to only have one single tab? Are all the email addresses located in a single column in the file you're uploading? Are there any other elements in our contact file formatting article that your contact file lacks?
I'd recommend either replying directly to the automated @ mention email you receive from this response, and include your contact file so we can troubleshoot further. Otherwise, you're also welcome to call our general support for live troubleshooting and assistance.
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