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We do not recommend re-uploading existing leads back into TLD, as it may cause reporting issues, duplicate issues, among other things.
For assistance with scanning the document to determine if there are any Dupes please see our Lead Deduping Tool .
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A carrier, or another third party entity may provide you a file in a variety of different formats that work for them, however, TLD will only accept Comma Delimited CSV files.
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