Find out how to open any file type
Open The File helps you open, understand, and troubleshoot file extensions on Windows and Mac. Get step-by-step instructions, fix “cannot open file” errors, and find safe conversion options — with no confusing jargon.
Popular file types
Discover how to open 852 file types indexed from real-world usage.
- .pdf
Portable Document Format
Documents
- .jpg
JPEG Image
Images
- .docx
Microsoft Word Open XML Document
Documents
- .png
Portable Network Graphics
Images
- .mp4
MPEG-4 Part 14 Video
Video
- .zip
ZIP Archive
Archives
- .xlsx
Microsoft Excel Open XML Spreadsheet
Documents
- .mp3
MPEG Audio Layer III
Audio
- .json
JSON data
Data
- .db
SQLite 3 Database
Data
- .env
Dotenv environment variables file
Configuration
- .ini
INI configuration file
Configuration
How to open files on Windows
Step-by-step guides for opening common extensions:
- How to open .pdf files on Windows
- How to open .jpg files on Windows
- How to open .docx files on Windows
- How to open .png files on Windows
- How to open .mp4 files on Windows
- How to open .zip files on Windows
- How to open .xlsx files on Windows
- How to open .mp3 files on Windows
- How to open .json files on Windows
- How to open .db files on Windows
How to open files on Mac
Step-by-step guides for opening common extensions: