How can I back up my site's LinkMachine link data?
Under Change Settings >> Backup Data, right-click on the link titled Click Here to Download LinkMachine Data and choose Save target as... or Save link as... from the pop-up menu. You will then be able to save your link data file (linkmachine.dat) to your own computer as a backup.
You can also download your link data in a readable and editable form, as a .csv file. This type of file can be opened as a spreadsheet in Excel and other similar programs. Under Change Settings >> Backup Data, click on the link titled Click Here to Download Link Data as .csv File.