Formatting Tables while sending mail

For one of my projects, I need to send a report in mail as a table which I included in my mail as a HTML table. I still need to reduce the column size of the table as whatever table I attach its size remains the same. I don’t need a big table for just 2 or 3 columns. The steps I followed are;

  1. Create a text file as mail template.
  2. Convert the required data table into HTML table using activity
  3. Attach the HTML table to the body of the mail, which is from the text file.

Kindly help me out to change the size of the table. Should I follow a different way?

Thanks in advance,
Fenelein George.