I have 54 old color slides with ebo extensions, i.e., BROFIRS(1)-(f85c4146).ebo
Google search indicates that the EBO extension was used on Microsoft Reader eBook. I made the slides on a Windows XP nearly 15 years ago and must have opened them on a Reader of that vintage (I no longer have that PC or Reader). I have tried to tap an EBO slide into a current Microsoft Reader eBook but an error message says the associated book or file cannot be found. I have also tried several file exchangers but none of them worked. I don't know where else to find a solution, so this is the first time I have tried this approach of sending my problem to some place. Thank you, Don Corbly.