To add downloadable content, go to Edit Microsite the select the Downloads tab.
Click on add new asset to browse for the file you would like to add. Click add new asset again to add additional files. Once you are done, update the campaign. If you return to the downloads tab, you will see each asset will now have its own unique URL
HANDY HINT: By ticking the checkbox below List the document or file will be automatically be listed on your microsite homepage:
Alternatively, you can use the unique URL to link the file to a tab in your navigation bar, or anywhere else on the campaign.