Recovering a recording after powercut

I was recording a group session to my computer yesterday afternoon when there was a power cut and I lost connectivity.  When I was able to access the folder later it shows a Zoom icon with the words "double_click_to_convert_01.zoom".  When I do this it it opens a "Converting meeting recording" but it does not start.  Perhaps the sudden shut down of the power cut has corrupted the file.  Does anyone have a suggestion on how I might recover the recording?  DMA001