File Type of the Day
.OLD
Backup File
An OLD file is a backup copy of a file, such as a .JPG or .DOC file. It may be created automatically by a software program or created manually by a user to indicate that the file is a backup copy of a file.
.OSU
Osu! Script
Game script written for osu!, a rhythm game where players click hit circles in sync with music; saves properties for a game challenge, such as the difficulty, the song that is played, and the timing points for hit objects; can be used by game community members for making custom challenges.
.PL
Perl Script
A PL file contains source code written in Perl, a scripting language compiled and run using a Perl interpreter. It contains lines of Perl program code with variables, operations, functions, and comments.
Weekly Top Extensions
—.APKAndroid Package File —.CRYPT14WhatsApp Encrypted Database File —.JPGJPEG Image —.JSONJavaScript Object Notation File .PDFPortable Document Format File+3 —.ZIPZipped File .GMDGeometry Dash Level-2 .ICSCalendar File-1 —.TXTPlain Text File .NOMEDIAAndroid No Media File+2 —.MP4MPEG-4 Video .LNKWindows Shortcut+2 —.EMLE-Mail Message .DOCXMicrosoft Word Document+3 .SB3Scratch 3.0 Project-5 .DATABASE_...Android Stale Thumbnails Identifier+3 .VCFvCard File-2 .CRDOWNLOADChrome Partially Downloaded File+2 .DATData File-3 .HTMLHypertext Markup Language File-2 .PNGPortable Network Graphic+2 .RPMSGOutlook Restricted Permission Message+6 .P7SDigitally Signed Email Message+9 .MOVApple QuickTime Movie+9 .PAGESApple Pages Document+2Universal File Viewers
Open your files with one of these file viewing utilities recommended by FileInfo.com.
About FileInfo.com
FileInfo.com contains a searchable database of over 10,000 file extensions with detailed information about the associated file types. You can look up information about unknown file types and find programs that open the files. Learn more about FileInfo.com.
Developers
Recent Updates
- June 17, 2026File Viewer for Android 5.0 is now available.
- March 17, 2026File Viewer Plus 6.2.2 is now available.
