Which MIME types are related to file extension ".ds_store"?

The .ds_store file extension is associated with 1 MIME types:

application/octet-stream.

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

About .ds_store Files

DS_STORE files are hidden files used by macOS to store folder view settings and metadata.

They are saved in a binary format with the MIME type application/octet-stream. This means they do not contain plain text data and are meant for system use only.


Most applications do not open or edit DS_STORE files. Specialized tools like hex editors or system utilities are needed to view their binary content.

Based on information from FilExt.com, it is best to leave DS_STORE files untouched since they are integral to macOS folder management.

Relationship between file extension and MIME type

A file extension is a suffix at the end of a filename that indicates what type of file it is. File extensions help both users and operating systems identify what application should be used to open the file.

File extensions are typically separated from the filename by a period (dot) and consist of 2-4 characters, though they can be longer. For example, in the filename "document.pdf", ".pdf" is the file extension.

File extensions are closely related to MIME types, as they both serve to identify the format of a file. However, while MIME types are used primarily by web browsers and servers, file extensions are used by operating systems and applications.

Associated MIME types

application/octet-stream

FAQs

What is a .ds_store file?

A .ds_store (Desktop Services Store) file is a system file created by the macOS Finder. It stores custom attributes of its containing folder, such as the position of icons, the background image, and window view settings.

Why do I see .ds_store files on Windows?

These files appear on Windows if you have transferred folders from a Mac via a USB drive, network share, or ZIP archive. While macOS keeps them hidden by default, Windows treats them as regular files and displays them, though they serve no purpose on a Windows PC.

Is it safe to delete .ds_store files?

Yes, it is completely safe to delete these files. On Windows, they are essentially junk files. On a Mac, deleting them simply resets the folder's display settings (like icon size or sorting) to the system default; it does not delete your actual data.

How do I open a .ds_store file?

You cannot open these files with standard text editors or image viewers because they are binary files. They are meant to be read only by the macOS system. If you attempt to open one, your computer may ask you to select an application or display it as garbled text.

Are .ds_store files a security risk?

Generally, no; they are standard system files. However, if uploaded to a public web server, they can accidentally reveal information about the folder structure or file names that were present on the developer's Mac. It is best practice to exclude them from version control systems like Git.

What is the MIME type of a .ds_store file?

Because they contain proprietary binary data, they are classified under the generic MIME type application/octet-stream. For more information on how systems handle generic binary files, see application/octet-stream.

How can I stop macOS from creating .ds_store files on network drives?

To prevent clutter on shared network drives, you can use a Terminal command on your Mac: defaults write com.apple.desktopservices DSDontWriteNetworkStores -bool TRUE. You must restart your computer for this change to take effect.

General FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why can one extension have multiple MIME types?

Different programs and historical usage may assign various MIME identifiers to the same file format. Listing them together helps maintain compatibility across tools.