Lestpleas.7z

Use 7-Zip (Official) or PeaZip . Once installed, right-click the file and select Extract Here .

If the file name "lestpleas" doesn't ring a bell, look for these clues after you (safely) open the archive: Often contains instructions or credits. lestpleas.7z

Upload the file to VirusTotal to check it against dozens of antivirus engines. Use 7-Zip (Official) or PeaZip

To see what is inside the file, you will need an extraction utility. lestpleas.7z

If you see folders like Data , Scripts , or Mods , it is likely a modification for a video game.