I want my colleagues to see my website before publishing so mistakes can be corrected. Is this possible?
Yes, it is possible. You need to publish your site to a folder on your computer. Then copy that folder to e.g. a suitable capacity pen drive. Take that pen drive to another computer, open the folder and double-click on the "index.html" file; this will "open" the site to allow it to be viewed on this second computer.
Alternatively, you could publish your site to your server, but place it inside a specific folder/directory, e.g. named "Test" so that it is accessible only to those you wish to see it before it goes fully "live". In this situation the URL would be https://{your site name}/test. You may need to add index.html to that URL.