The formatting of GDPR/RTBF/CCPA purge requests to Acquia Customer Data Platform should be a .csv text file that contains the CDP CustomerIDs to be purged.
Unless your CDP tenant is using Global Customer Ids, the CDP CustomerIDs is a concatenation of an CDP-assigned SourceSystemID and a source system-assigned SourceCustomerNumber (i.e. record identifier).
Please provide the data in a .csv file similar to the sample below. The file should use double-quotes as a text qualifier.
1) Do NOT send the data in Excel worksheets. If you want to password protect the data, please add the .csv to a password protected .zip or .gz file and send us the decrypting password along with the file.
2) Use a text editor to double-check that the file conforms to file formatting guidelines
3) Read the full Privacy API guideline document here (https://docs.acquia.com/customer-data-platform/regulation-compliance/privacy-api/)