When you run Remote Desktop Connection from your laptop, click on the Options
button.
Click on the Local Resources tab.
In the Local devices and resources section, hit the More button.
Put a check mark in the box next to Drives.
Note: Hit the + sign if you only want certain drives on the local computer to be
available.
Click OK.

When you connect to your office computer, open My Computer or Windows Explorer.
You should now see the drives on your laptop listed.
Find the file you want to transfer from the office computer and copy it to the
location on your laptop where you want it stored.

Good luck

Nepatsfan