File Extensions?

At the end of every file name, there is an extension. You can choose to see or not see this extension. Extensions can provide information about which program will be used to see the extension. Below, there is a list of extensions that you should be cautious about, and extensions that will probably be safe to open. Also, be very cautious when using files with more than one file extension.

NOTE: All file extensions could have risks, for example, a word document could contain an insecure macro.


SAFER:

• .doc
• .wav
• .mp4
• .avi
• .xls
• .ppt
• .mp3
• .docx
• .xlsx
• .jpg
• .png
• .gif
• .avi
• .txt
• .css
• .epub
• .pdf
• .swf
• .avastsounds
• .flac
• .aup
• .acsm
• .psd
• .tiff
• .ipr
• .wpd
• .frv
• .comicdoc

TAKE CAUTION:

• .exe
• .msi
• .js
• .html
• .iso
• .bin
• .dll
• .dat
• .sys
• .ini
• .asx
• .bas
• .bat
• .chm
• .cmd
• .com
• .cpl
• .inf
• .ins
• .jse
• .pif
• .scr
• .wsh

UNKNOWN:

(below are file types that are in compressed format and therefore are very hard to tell. When downloading compressed files, be sure to download from a reliable source)

• .rar
• .zip
• .crx
• .torrent
• .file

NOTE: This list will be updated constantly, so please check