PromoRepublic provides the ability to export the content plan that you've prepared, particularly scheduled posts (not yet published posts) from the current day till the last scheduled post date.

In the Calendar, find 3 dots on the top right under your profile picture (or camera icon) and hit Export Schedule.

In the pop-up window, you'll be able to export the upcoming content for the selected social page. 

An .xls file will be automatically saved to your computer. Feel free to send it to your client!

☝️ Please note that you can't export published and draft posts. If you are interested in the insights of the published posts, check this info in the Statistics or Reporting sections.  

☝️ As mentioned, data is exported for a certain page. It means that this ability is disabled when several pages are selected.