Yes - Tendenci now has a memberships import tool that will take your list of members and turn them into Tendenci users and members with logins.

1. From the Memberships Module click "Reports"
   
2. Choose the "Import Memberships" option
   
3. Define your import settings
   
4. Browse to your file
5. Enter the authentication string and press submit

Available import formats are located here: /en/memberships/upload/formats/index.asp

If you are not currently a Tendenci client contact sales to discuss format options.

Other things to note are:

1. When you are putting all your data into one of our formats you need to be sure that each empty column has spaces in it. Use your keyboard to bring up the Find box (CTRL + F). Do a find for (leave the box blank) and replace with (one space bar space). This replaces all the blank cells with one space.
   
2. That prior to importing the data you delete the titles that appear in the first row, otherwise this information will be imported as a Member.