Before knowing about FreeFileViewer software, I usually had to download many different programs to perform the task that this only product is capable of doing itself. I can open over 200 types of files extension as like images (jpg, png, psd...), videos (.mpg, .mp4...), audios (.mp3...) and even .doc, .pdf extension. The software is light, easy to download and use, and it is also free. You can make a money contribution any time you want as a donation to support the developer if you like it. Great software!