Bought a new laptop and want to move some old csv files to the Logs folder on the new laptop. The file (tried one, Blockmap) will only open if Excel (Offiice 2010) is opened first and then the "open" command is used. Saving the file as xlsx does not help. Setting Excel as default for csv files in Windows does not help. Not a big problem, just a small annoyance the first time it happens.