Question: How can I export a specific page in Wordpress?

I want to use a page from one wordpress instance in another wordpress instance, both having same theme.

How can I do this?

Answer: 
1. Go to your admin panel then go to Users > Add New.
2. Create a new user with username `Exporter` and set the role to Author and save.
3. Change the author of the post or posts that you need to export by selecting them and then clicking edit. Change the author to `Exporter`

[![enter image description here](https://i.stack.imgur.com/6mSJn.jpg)](https://i.stack.imgur.com/6mSJn.jpg)
4. Go to Tools > Export and choose what type of content you want to export and select the author `Exporter` then click Download Export File. The resulting file contains all the information you need in XML format.

[![enter image description here](https://i.stack.imgur.com/zHjIJ.jpg)](https://i.stack.imgur.com/zHjIJ.jpg)
5. Go to the WordPress website where you want to import this information and go to Tools > Import > WordPress.
Similar to *Ali Raza*'s answer, if you don't want to create an author to export just one page you can

* modify the publish date of the page to a date before the creation of the installation
* and while exporting select that date and export
* then change the date back

`(would've commented but not enough rep)`