A viewer for 35mm strip films?

There was a request from a neighbour last night. Did we, or any of the other people on his list, happen to have a viewer for "these strip films"? 
The Senior Cat said, "He means 35mm film - and no, we haven't."
He had to speak to my brother anyway and asked him if he had any ideas. The discussion went quite technical. I didn't bother to try and follow it.
The film strips belonged to our neighbour's late brother. It has taken M.... a long time to get around to looking at these and other things after the appalling manner of his brother's death. 
The images will almost certainly bring back all sorts of memories. I don't imagine that they will be easy to look at.
We have a good many photograph albums stacked away in a shed. They contain photographs mostly of the two nephews who grew up here. My brother-in-law took many of the photos. I haven't looked at them in years. My mother would sometimes. Once in a while she would even sit with Middle Cat's mother-in-law and they would exclaim over how the boys had grown and so on. Yes, they were still young. The older of the two had only just started secondary school when his grandmother died. Now, he's a full blown doctor, about to get married. 
M...'s request reminded me though of how important such things are. It is said that when people lose all their possessions in a fire, flood or other disaster that one of the things that one of the things they most regret losing is photographs - those moments forever held still in time, a reminder of something past. 
My immediate family took very few photographs when I was a kitten. They were of course relatively expensive to take. My maternal grandmother had a camera. I appear in almost none of the remaining photographs. I can think of just three. My siblings appear in more - but not many.  None of us like to be a photographer's subject. 
In a way I regret there aren't more of us when young. It might have been useful when we try to explain just what it was like when we were "that age". 
I asked the Senior Cat, "What happened to the group photographs from school?" 
He had no idea. I have a suspicion my mother, who would have been the one to do it, never bought them. She simply would not have been interested. It would not have occurred to her that they might have been a record for us as well as her.
I suppose it doesn't matter that much but family photographs might. They certainly matter for M... It might be painful to see them but the fact that he now feels he wants to look at them suggests that he is, at last, learning to live with his brother's suicide. 
I admire him for wanting to see those photographs and I hope someone can help him do it.