If using new FW 02.01.00.03, I strongly advise against loading WFM files created under a different FW version.
Doing so (at least on my DSO) immediately changes the language to Chinese - and then hangs before finishing loading of the file. A reboot will get you out of the hang, but many things will be screwed-up, and if you then, for example, go to Measure->Display All->On - you will hang the DSO permanently - unable to exit the hang even with a reboot - requiring a downgrade to older FW to restore it to working function.