I am a global administrator for our Atlassian suite and I followed the path described at the beginning of this article (Administration settings cog > Issues > Workflows) but I don't see the "Import from XML" button. There is only the option to Import from the Marketplace.
My company uses Jira Cloud; do the instructions on this page not apply to Cloud? Is the "Import from XML" function available for Cloud?
Yes, it is possible. However, it would require you to upload the workflow (.jwb format only) as a public workflow in the Atlassian Marketplace first before you can import that into your Jira Cloud instance.
Kindly refer to the following documentation for the steps on how to import a workflow in Jira Cloud.
Please be noted that the workflow that created Jira Server that contains third-party workflow post functions, conditions or validators might not be working in Jira Cloud.
Uploading a workflow to the marketplace just for the sake of sharing is a HUGE pain. You need published customer terms and everything. This is completely ridiculous that you can't just import an exported jwb file to another cloud account, or share between cloud accounts that your account has access to...