I don't know anything about Mac, but with Windows you right click and select "Open With", but, you have to have a Zip program on the computer to open it with. I would guess that Mac has something similar to "Open With", but, you will still need a Zip program.

You have to unzip the file. It contains 2 separate files. One is instructions and the other is the update. There are free programs that will unzip it. Google is your friend. Just search for "Free zip file opener". After you unzip put the update file on your card. Do not put it in either of the folders on your card. Your camera will recognize it as soon as you start the firmware update.
Several Canon lenses also have firmware updates available.

Quite often, it would seem, the hot young lady with brains is quite happy to let the 50 yr old hot shot dote on his shiny red Ferrari while she does what she wants to!

True. People make foolish purchases every day. The housing and auto industries count on it. You would have to convince me that it is a big issue in the world of photography. Either way, it's none of our business.

Sure, and I get it. I should have made it clear that I wasn't trying to get on Manglesphoto's case. The point I was trying to make, using his statement, was that how someone else spends their money is none of our business. There are all too many on here who are apparently eager to lecture others about their financial wisdom while knowing nothing about that person's financial status. That's insulting. I'm pretty sure that anyone smart enough to operate a camera and formulate a coherent question about a gear purchase is smart enough to know it has to be paid for and whether or not they are able to do that.

Why is the OP's bank account of concern to anyone but him?

"Conventional Wisdom" is not always very wise. Ever heard that you should reduce the air pressure in your tires before a long trip? That bit of conventional "wisdom" has killed people. Leaving IS active when on a tripod will not harm your equipment. If that was a possibility there would be a warning in your manual, probably in big red block letters that you MUST turn off IS when using a tripod. Instead there is probably just a single line in normal letters advising you to shut it off. Not a bad precaution with some cameras but totally unnecessary with others. The worst that will happen is that you will have an IQ issue with some of your photos that you probably won't notice until you review them on a big screen. Even that is only likely to happen under a particular set of circumstances, but, like any number of things here on UHH, you will be supplied with the conventional wisdom that your camera will vaporize in a white hot ball of flame if you forget to do this or that or something else.

You may want to read this:https://kenrockwell.com/nikon/z/z9.htm

I don't believe I have ever seen him do such a comprehensive review of any camera. I'm a Canon guy. Love my mirrorless R5 but can't tell you a thing about the Z9. My nephew, a former newspaper photographer and dedicated Nikon guy, recently bought one. Gives it mixed reviews as far as using it but seems to like it more the longer he has it. Not surprising. Takes a while to get used to most anything new. He seems very pleased with the Z9's output though.

Apparently this company has been around for a while but the first I heard of it was on a segment of a TV show about innovative products. Thought some of you may find it interesting. One of the modules is designed for camera gear.
https://www.brightlinebags.com/

Yeah, Yeah, we've all heard these silly predictions before. "Horseless carriges will replace horses", "People will fly through the air in machines", "Men will walk on the moon". With a track record like that who would believe any predictions about the future? Glass plates and flash powder are going to be around for a long, long time, and, the Cubs will never win the Series. Bet on it!

If you use the "Quick Reply" box it does not display Smilies, even if selected in your profile. You have to first post your reply and then go to that reply and click on "Edit". Once it opens for editing you can select Smilies. As I am about to do in this Quick Reply.

Another fellow just beat you to it with a PM. Sorry!

I got your PM and will send it when I get your address.

Sorry, it's already gone.

You were right!