One particular spreadsheet only (so far anyway). It appears that the file starts to open, then the window just vanishes. The .~lock file is left behind, so the next time I try it makes me go through the recovery, then says recovery was successful, then dies. A couple of weeks ago the file opened normally. It killed a LibreOffice Writer file I happened to have open as well, when it died. So it appears to be crashing whatever common LibreOffice shared core is running. It doesn't appear to matter whether I attempt to run the file from a command (DOS) prompt, or open it with explorer, or open Calc first & then try to open it from there. Rev is actually 5.0.6.3, according to Help->About; that isn't in the list above. This is financial information I need to be able to access. If it were something else, I'd attach the file, but this isn't something I can just pass out. Thank you.
LibreOffice 5.0 has reached the end of its lifecycle, could you give it a try with the latest 5.1 release? At the time this is 5.1.3, but there's also a 5.1.4.2 pre-release version, which will likely be released as 5.1.4.
I did up-rev to 5.1.3, & after that I was able to open the spreadsheet. Since I don't know why LibreOffice was crashing, I don't know whether this is a fluke or whether the problem is fixed. I had previously tried to update, using Help->Check for updates, & it told me that LibreOffice was up to date; so until I entered the item shown above, it hadn't occurred to me that there might be a newer version. Why would it check & then tell me I was up to date, when there was a later rev? I'd have to call THAT a bug! But thanks.
Version 5.0 reached EOL very recently, at the end of May. At all time, LibreOffice has two maintained versions, the latest one (fresh - currently 5.1), and the previous (still - currently 5.0). The reason for that is there are users who prefer stability over new features. Both fresh and still versions get bugfixes, it's just a special time that 5.2 is right before release (expected in August), and 5.0 is not maintained anymore. As soon as 5.2 arrives, 5.0 users will be notified that they should update to a newer release. I hope that sufficiently answers your concerns.