If you can from the archive or provide descriptions of the photos, I would be happy to help you organize them, write captions, or provide a creative review of the photography.
(or use a compatible tool like WinZip or Keka). Right-click the file and select "Extract" to a new folder. Vacation_Photos.7z
: Given the name, it almost certainly contains a collection of image files (JPEG, PNG, or RAW) and potentially short video clips from a trip. If you can from the archive or provide