Install the Java Open SDK

Download Salesforce Data Loader from https://developer.salesforce.com/tools/data-loader

Extract files from the zip to a temp folder

Launch the Windows Command Shell

Run "install.bat"

Follow the on-screen instructions to install the Data Loader

How to request token seed or secret file

On the page where you need to specify the Seed File Format, select "Salesforce CSV"

Once you have downloaded the token seed file, you need to make the following changes to the seed file:

1 - Insert user names

Open the token file that you have downloaded in a text editor, such as Notepad (do not edit the token file using Excel)

In the first line, insert "User Name," at the begining

Now, you can assign tokens to users by adding the name of the user against the token to be assigned

The example below assigns the first token to a user named "user1@deepnetsecurity2.com"

Once you have assigned all tokens. save the file

2 - Change the file extension

The token seed file you have downloaded has the file extension "xxxxxxxx.csv.txt". Remove ".txt" at the end. In other words, rename the file name as "xxxxxxxx.csv". 

(The reason why the file name comes with ".txt" extension is that it prevents you from automatically opening the file in Excel. And, the reason why it needs to be renamed to ".csv" is that Salesforce only accepts ".csv" files)

Press the "Insert" button

Press the "Log in" button

A web browser will open asking you to enter a code which has been prefilled

Press the "Connect" button

You will now need to log in to Salesforce

Enter your username and password, then press "Log in"

Click the "Allow" button to allow the Data Loader application access to your SalesForce account

Press "Continue"

Now, switch back to the Salesforce Data Loader application

Tick the option "Show all Salesforce objects"

Enter "twofactorinfo" in the search box

Select "Two Factor Info (TwoFactorInfo) 

Click "Browse..." to select the Token CSV file you have prepared

Press "Next"

You should be presented with a data selection window confirming the number of rows

Click "OK" 

Select "Username" in the Lookup Field of Related Object drop-down list

Press "Next"

You will now be presented with the page below

Click “Create or Edit a Map” 

You will now be presented with the page below

Drag the Salesforce object fields down below to the CSV Column, so that the result looks the same as the one below.

Click "OK"

Click "Next"

You will then be asked to select a folder where the log of the Data Loader activity should be written to

Click "Browse..." to select a folder, e.g. C:\Temp

Click "Finish"

Click "Yes" to confirm you wish to proceed with inserting the data

You should now be presented with a window confirming that the records have been inserted into Salesforce

Tokens have now been successfully assigned to users

Click "OK"

You can now close the Data Loader