This tutorial will show you how to setup your HTML email signature in Outlook.
Step 1:
Download the HTML file that was sent to you via email.
Step 2:
Open the HTML file in your Web Browser by double clicking it or dragging it to your browser.
Step 3:
Once the Email Signature is open in your web browser, press CTRL + A (Command + A for Mac) to highlight the signature, then press CTRL + C (Command + C for Mac) to copy the signature.

Important: Do not use your mouse to select the area, only use Ctrl + A (or Command + A) as you may miss out on grabbing some of the code.
Step 4:
Open Microsoft Outlook 2010 and select the ‘File’ tab at the top right of the program on the Menu Bar.
Step 5:
On the left hand side, click the ‘Options’ button.

Step 6:
Once the ‘Outlook Options’ box has opened, select the ‘Mail’ tab on the right hand side just beneath ‘General’.
Step 7:
Click the ‘Signatures…’ button on the right hand side.

Step 8:
Click the ‘New’ button to create your Signature in Outlook 2010.
Step 9:
The ‘New Signature’ box will open. Enter what you would like to name your signature, and click ‘OK’.

Step 10:
Paste (CTRL + V) your signature that you copied in Step 3 into the field.

OK the settings and you’re done!
Congratulations! You will now see your brand spanking new email Signature when sending emails with Outlook.