Opening LIBRARY-MS Files

The LIBRARY-MS file type is primarily associated with Windows Explorer.

LIBRARY-MS	File extension: LIBRARY-MS
	File type:	configuration file

What is a LIBRARY-MS file

LIBRARY-MS files mostly belong to Windows Explorer. LIBRARY-MS files are XML-based files that define Windows libraries for Windows Explorer.
They hold the configuration data used to combine content from different folders into one library view. The XML content specifies which folders to aggregate and the search criteria to apply.

These files are stored in the Libraries folder (often in AppData\Roaming\Microsoft\Windows\Libraries).

They include XML tags that define the library name, folder paths, and view settings.

Windows Explorer uses them to present unified views of your files.

For more details, see the Microsoft documentation.
FilExt.com note: You can open and view them with a text editor, but editing them manually is not recommended unless you back them up first.

How to open a LIBRARY-MS file

You need a suitable software like Windows Explorer to open a LIBRARY-MS file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your LIBRARY-MS file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a LIBRARY-MS file directly in the browser:. Just drag the file onto this browser window and drop it.

Online LIBRARY-MS Text Viewer

Choose your .library-ms file to analyze

or drag and drop it here

Online File Viewer

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LIBRARY-MS file extension format:

To find out what program is needed to open LIBRARY-MS files, you need to determine the file format. The initial characters of a file are called signature, sometimes also referred to as "magic bytes". The signature can be used to infer the file format. Nonetheless, different programs can utilize the same file extension to represent distinct file formats. Double-clicking on the file often results in an error when opening. Exact knowledge of the format is therefore important in order to solve problems occurring in files. Below is our analysis of the LIBRARY-MS files:

The LIBRARY-MS file extension is rarely used and mainly uses a defined LIBRARY-MS format. But the following two file formats are common:

• 85% of all LIBRARY-MS files are Microsoft Windows library description files, which are based on the XML file format. The Extensible Markup Language (XML) is a simple text-based format for representing structured information: documents, webpages, data, configuration, books, transactions, invoices, and much more. XML defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. These files are text files, so they contain words and text. The files are 780 bytes to 2 KB in size, with a median of 990 bytes. It is a modern file type. The following keywords are characteristic: <?xml version="1.0" encoding="UTF-8"?>, <libraryDescription xmlns="http://schemas.microsoft.com/windows/2009/library">, ownerSID, <name>@shell32.dll,-34615</name> and <!-- IDS_RECORDEDTVLIBRARY -->. The following filename is common: RecordedTV.library-ms or Pictures.library-ms. Files like these are about documents, invoice, camera, roll, videos and payment.

The remaining 15% of all LIBRARY-MS files are files with no common format. You can get all the details of your LIBRARY-MS file by dragging it onto this page or by clicking the button "Choose your .library-ms file to analyze" above.