Help Center
File Extensions
- What is a file extension?
- Can I change a file's extension?
- Can more than one program use the same file extension?
- Can I legally register a file extension?
- What are read-only files and what are they used for?
- How do I open a file without a file extension?
- What is the difference between a file extension and a file type?
File Formats
- Why do some file types use both three and four-letter extensions?
- What are temporary (.TMP) files and how do I delete them?
- What are Windows Thumb.db files?
- What are the new document formats used in Microsoft Office 2007?
- What are RAW images and the different raw image file formats?
- Why is a WINMAIL.DAT file attached to some of my e-mail messages?
- What is the purpose of the VIDEO_TS folder on my DVD?
- How come I can open some AVI files, but not others?
- What audio file format is used for CD audio files?
- What is the difference between .BAT and .EXE files?
- What is the difference between binary and text files?
- Are Macintosh and Windows fonts compatible?
- What are the new Google Docs file types used by Google Drive?
- What is a Windows shortcut file?
- What are the different OpenDocument file types?
- Why did my Windows desktop icons change?
- Where does Android store apps on my device?
- What are the 10 most dangerous Windows file types?
- Which tax file formats are used by different tax programs?
- What is the Apple File System (APFS)?
- What is a .NOMEDIA file on my Android device?
- What is a package in macOS?
- Why do images become blurry when I enlarge them?
- Why can't I open my camera raw file?
Software
- Can I run Windows programs (.EXE files) on a Mac?
- What are some common text editors?
- What are some common image viewers?
- What are some common audio players?
- What are some common video players?
- What are some common web browsers?
- What are the best antivirus programs?
- What is discontinued software?
- What are some common archive utilities?
- What are some alternatives to Adobe Creative Cloud?
How-tos
- How do I show file extensions in Windows XP?
- How can I change what program opens a certain file in Windows?
- How do I show or hide file extensions on a Mac?
- How can I change what program opens a certain file on a Mac?
- How do I open a file with no extension on my Mac?
- How do I choose default programs to open files in Windows 7?
- How do I change file associations in Windows 7?
- How do I delete Temporary Internet Files in Windows?
- How do I show or hide file extensions in Windows 7?
- How can I check if a file has a virus?
- How do I find the original file that a Windows shortcut points to?
- How can I show hidden files in Windows?
- How do I rename multiple files at once in Windows?
- How do I batch rename file extensions in Windows?
- How do I show or hide file extensions in Windows 8?
- How do I install an APK file on my Android device?
- How do I change file associations in Windows 10?
- How do I show file extensions in Windows 10?
- What is ransomware and how do I remove it?
- How do I save a file as a PDF in Windows 10?
- How do I save a file as a PDF in macOS?
- How do I set default apps in Windows 11?
- How do I show file extensions in Windows 11?
- What is the 3-2-1 backup rule?
- How do I show file extensions in iOS?
- How to open HEIC files in Windows 11 and 10
- How to show file extensions in OS X
- How to show file extensions in Windows 8
- How to change what program opens a file in OS X
- How to change what program opens a file in Windows 8
- How to show the user library folder in OS X
- How to show hidden files in Windows 8
- How to create a shortcut in Windows 8
- How to show file extensions in Windows 10
- How to show hidden files in Windows 10
- How to use item check boxes in Windows 10
- How to create an alias in OS X
- How to change file permissions in Windows 10
- How to manage files in the iOS Files app
- How to open an unknown file in Windows 10
- Five ways to take a screenshot in macOS
- Four ways to take a screenshot in Windows 10
- Resume an interrupted download in Chrome
- How to show hidden files in Windows 11
- How to zip files in Windows 11
- How to save a file as a PDF in Windows 11
- How to change desktop icon size in Windows 11
- How to create a shortcut in Windows 11
- How to view file properties in Windows 11
- How to search by file extension in macOS
- How to hide a file in Windows 11
- How to clear File Explorer history (recent files) in Windows 11
- How to convert images with Apple Preview
- How to show file extensions in macOS
- How to tag files in macOS
FileInfo.com
- How do I bookmark FileInfo.com?
- How do I link to FileInfo.com?
- How do I add a File Extension Search Box to my website?
- Can I get a file extension dashboard widget for my Mac?
- What is the file type Popularity rating?
- Does FileInfo.com offer a Google Chrome extension?
- How do I reference or cite definitions from FileInfo.com?
- Who are the authors of FileInfo.com?
Have other questions? Contact FileInfo.com.