Opening FILTER Files

The FILTER file type is primarily associated with Notepad.

FILTER	File extension: FILTER
	File type:	configuration file

What is a FILTER file?

FILTER files mostly belong to Notepad. FILTER files are plain text configuration files used to define in-game loot filtering rules. They serve to instruct the game client on which items to display and which to hide based on a set of criteria.
Most files of this type are applied in games like Path of Exile and also in projects related to Diablo 2. They specify conditions that determine item visibility and layout, and may use different encodings (for example, UTF-8 or Source2) depending on the game’s requirements.
Key details compiled by FilExt.com include:

Rule Syntax: They include conditions and operators that tell the game how to filter loot items.

Editable Format: They are simple text files which can be opened and modified using any basic text editor such as Notepad.

Community Resources: Guides and shared configurations can be found on sites like Filterblade and Project Diablo 2.

FilExt.com note: This design lets players tailor their in-game experience by highlighting valuable loot and reducing clutter.

How can I open a FILTER file?

You need a suitable software like Notepad to open a FILTER 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 FILTER file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a FILTER file directly in the browser:. Just drag the file onto this browser window and drop it.

Online FILTER Text Viewer

Choose your .filter file to view

or drag and drop it here

Online File Viewer

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How to extract texts from FILTER files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

1. Just click the "Choose your .filter file to view" button on this page.
2. After your file is opened in browser,
3. click "Save as..." in the menu.
4. Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
5. Your file will be converted and downloaded.

FILTER file format:

To find out what program is needed to open FILTER files, you need to determine the file format. Each file format has a unique extension and almost always a unique signature. For example, Microsoft Word documents have the extension .docx and the signature (usually the first 3 characters in this file) PK. 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 FILTER files:

An FILTER file includes different formats for the applicable programs. However, the following two file formats are common:

• 50% of all FILTER files have the same signature #=================================================. The contents of these files can even be read by a human. A typical file size is 320 KB. This file type is based on cutting-edge technology. Certain words are almost always found in the files, such as # NeverSink's Indepth Loot Filter - for Path of Exile and #===========. A usual file name is FilterBlade.filter or NeverSink-s filter - 1-REGULAR.filter. These files can be linked to strict, soft, semi and sinksfilter.
• 25% of all FILTER files are based on the popular UTF-8 file format. UTF-8 is the World Wide Web's most common character encoding for Unicode. UTF-8 files can be viewed with any text editor. These files start with the 3 bytes  (hex: EF BB BF), the so called byte order mark (BOM). These files are text files and can therefore be read using a text editor. The files are often between 690 bytes and 180 KB in size. The following keywords are characteristic: ): http://akelpad.sourceforge.net/ru/download.php and # Script edited with Filtration - https://github.com/ben-wallis/Filtration. Examples of file names are item.filter or SerialManiac filter V9.1 Extended Delirium.filter. These files can be linked to serial, maniac, extended, delirium, heist, maniacfilter, metamorph, ultimate and group.

The remaining 25% of all FILTER files are files with no common format, such as Source and Item. Files like these are sometimes linked to custom or very. You can get all the details of your FILTER file by dragging it onto this page or by clicking the button "Choose your .filter file to view" above.