Paul has shared a "matlab" folder on Google Drive. You should have the Google Drive sync software running on your computer; this will automatically download the latest files to Google Drive\matlab (e.g., D:\Documents\Google Drive\matlab).
Refreshing when Google Drive has not updated
Sometimes the files on Google Drive do not update from the cloud. To fix, close and restart Google Drive (see steps below - do not delete the SPM12 folder).
Troubleshooting: "(1)" files
Files with the suffix "(1)" arise because Google Drive gets confused, and thinks you have a separate and possibly different copy of that file on your computer, so rather than overwriting, it creates a copy with "(1)" suffix. If you just have a couple of files, delete them and the orginal with no suffix. However, if you have a lot, if you want to be sure, or if it continually creates the "(1)" files, then restart Google Drive
- Stop Google Drive (right-click over the icon at the bottom right, settings, Quit Google Drive)
- Go to the Google Drive folder, delete the matlab spm12 folder
- Restart Google Drive (at the start menu, search for google drive, click it)
And to find all the files, seach for "(1)" in explorer. If explorer fails, install Agent Ransack, which is a proper search tool.