In my office I'm the only one that uses Mac. So I often get files from people that I need to modify. So what's happening a lot now is when I open the files I always get a pop up saying "The font Calibri is missing. Your text might look different". It's really starting to irritate me so I went through a few documents (which are small, often just one page) and have tried to systematically make sure there's not a single word of text I haven't manually changed to Helvetica. Doesn't matter. Stupid pop up still happens every time I open them. Even when I've done Command A both in and out of the table on the documents. Thanks in advance.