When a file extension does not match its MIME type, it can cause unnecessary headaches for users. Fortunately, the issue is usually a simple fix.
What is a File Extension & MIME Type?
A File Extension is the part of a file’s name that follows the full stop character. It is made of characters that tell the system what kind of file it is. MIME Type, or Multipurpose Internet Mail Extensions, is a type of format that defines how a file is encoded and sent over the internet.
Why is a Mismatch of File Extension and MIME Type an Issue?
When a file extension and MIME type do not match, it may be difficult to open the file. This is because the system may not recognize the file format and therefore will not be able to render it. Users may have difficulty uploading the file to a server, or app, as well.
How do I Fix a Mismatch of File Extension & MIME Type?
The following steps will help you fix a mismatch of file extensions and MIME types.
- Identify the file type of the file that needs fixing.
- Use a program, such as FileZilla, to connect to the server where the file is located.
- Find the correct MIME type of the file, by consulting a MIME Types reference library.
- Once the MIME type has been identified, rename the file with the correct extension.
FAQ
Q: What is a File Extension & MIME Type?
A: A File Extension is the part of a file’s name that follows the full stop character. It is made of characters that tell the system what kind of file it is. MIME Type, or Multipurpose Internet Mail Extensions, is a type of format that defines how a file is encoded and sent over the internet.
Q: Why is a Mismatch of File Extension & MIME Type an Issue?
A: When a file extension and MIME type do not match, it may be difficult to open the file. This is because the system may not recognize the file format and therefore will not be able to render it. Users may have difficulty uploading the file to a server, or app, as well.
Q: What programs can I use to connect to the server where the file is located?
A: You can use a program such as FileZilla to connect to the server where the file is located.
Q: How do I identify the MIME type of a file?
A: You can identify the MIME type of a file by consulting a MIME Types reference library such as FreeFormatter’s MIME Type List.
Q: What should I do once I’ve identified the MIME type of the file?
A: Once the MIME type has been identified, rename the file with the correct extension for the file type.