: Given the name, it almost certainly contains a collection of image files (JPEG, PNG, or RAW) and potentially short video clips from a trip.
(or use a compatible tool like WinZip or Keka). Right-click the file and select "Extract" to a new folder. Vacation_Photos.7z
If you are looking for a general assessment of what a file with this name might contain or how to handle it, : Given the name, it almost certainly contains
: The .7z extension indicates a compressed archive created with 7-Zip . These files are used to bundle multiple items (like photos) into a smaller, single file for easier storage or sharing. : Given the name