How to send CSV attachment in apex code

By | February 18, 2022

In this blog, we will discuss How to send csv attachment in apex code.

Here, we are going to see how create a csv file with code and then we will send that file as attachment to the mail with the help of the apex code.

Apex logic to send the csv attachment with mail:

public static map<String,String> SendMail()
    map<String, String> result = new map<String, String> ();
    String csv = 'Id,Name\n';
    for ( List<Account> accts : [ SELECT id, name FROM Account LIMIT 10 ] ) 
        for ( Account acct : accts )
            csv += + ',' + + '\n';
    result = SendCsvEmail(csv);
    return result;
public static map<String,String> SendCsvEmail(String CsvData)
    System.debug('CsvData' +CsvData); 
    map<String, String> result = new map<String, String> ();
        Messaging.EmailFileAttachment csvAttachment = new Messaging.EmailFileAttachment();
        Blob csvBlob = blob.valueOf(CsvData);
        String csvName = 'CsvFileName.csv';
        Messaging.SingleEmailMessage email = new Messaging.SingleEmailMessage();
        String[] toAddresses = new String[]{''};
            String subject = 'Test CVS Email';
        email.setPlainTextBody('Test CSV Email');
        email.setFileAttachments(new Messaging.EmailFileAttachment[]{csvAttachment});
        Messaging.SendEmailResult[] r = Messaging.sendEmail(new Messaging.SingleEmailMessage[]{email});
        if (r[0].success) {
            System.debug('The email was sent successfully.');
            result.put('SUCCESS', 'The email was sent successfully.');
        } else {
            System.debug('The email failed to send: ' + r[0].errors[0].message);
            result.put('ERROR', 'The email failed to send: ' + r[0].errors[0].message);
    catch(Exception EX)
        System.debug('The email failed to send: ' + Ex.getMessage());
        result.put('ERROR', 'The email failed to send: ' + Ex.getMessage());
    return result;

We hope using the information; you are able to create and send csv attachment with an email.

Note: – Replace with the email address where you want to send the email.

We hope you may find this blog resourceful and helpful. If you still have concerns and need more help, don’t hesitate to get in touch with us at

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