If you open a template inside of After Effects or Premiere Pro and receive a 'damaged file' error message, it means you currently don't have the software version that the template requires.
To find out which which version of the software you will need, go the product page to see which version of the software is listed under ITEM DETAILS.
If you have an older version of the software, we suggest you download the trial of the current version. This will be a fully functioning version of the software that you will be able to use for 30 days.
NOTE: If a template cites a specific software version like 2022 or 2023, then it means you will need to upgrade your software to that version in order to be able to open the template.
For example, if you have version After Effects CC 2017 installed on your system, and the template requires version After Effects CC 2020, you will not be able to open the template, as version CC 2020 is higher than the CC 2017.