Yes, all Pro and Premier SKUs share the same file formats.  You can move files between these SKUs at will.

Resolution for 'between these issue: 'Can I take a file I created in QBA Desktop Pro 2017 and have my client open the file with his Desktop Pro 2017?' available: Yes.

The between these issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the between these issue yourself by looking for a resolution described in the article. If it is a complex between these issue or you are unable to solve the issue, you may contact us by clicking here or by using other between these support options.

For more information about resolving issues related to between these in Quickbooks/QBO or to get support for the issue 'Can I take a file I created in QBA Desktop Pro 2017 and have my client open the file with his Desktop Pro 2017?', click the link below: