Opening a PHL File

The PHL file type is primarily associated with Kindle.

PHL	File extension: PHL
	File type:	popular highlights

What is a PHL file?

PHL files mostly belong to Kindle by Amazon. A PHL file contains information about sections of an e-book highlighted by Kindle e-book reader users. Kindle apps and devices use data stored in PHL files to highlight (add transparent backgrounds or underline) popularly marked items in AZW, AZW3, or KFX documents. The contents of this file are written in XML and they're typically used to draw a user's attention to passages that are most highlighted by Kindle users who have previously read the same book. Another type of PHL file contains settings used by MySQL and PostgreSQL database management systems. PHP source code is also saved in PHL files.

How do you open PHL files?

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

Online PHL Text Viewer

Choose your .phl file to analyze

or drag and drop it here

Online File Viewer

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PHL file format:

Why is it important to know the file format? This is the only way to find out which program to use to open the file. 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. Frequently, however, one file extension is used by different programs for different file formats, and one file format for different file extensions. If there are problems opening a file, you must first determine the file format used. Our examination of the PHL files comes to the following conclusion:

The PHL file extension is not widely used. Such a file is used by different programs with different formats. The two most common formats are as follows:

• 40% of all PHL files store the data in the GZIP file format. Gzip is a compressed archive file format. Gzip (GNU zip) is only capable of compressing a single file. They consist of illegible, cryptic characters. A typical file size is 370 bytes. The file type is relatively new. Such files sometimes refer to edition, english, book, asin, ebok, type, kindle, agile, novel and white.
• 25% of all PHL files are based on the well-known 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 and can therefore be read using a text editor. PHL files are between 300 bytes and 1 KB in size. The following keywords are characteristic: <?xml version="1.0", encoding="UTF-8" standalone="yes"?><popular, guid, key, EBOK, content type, popular timestamp and update_id. The file name B003ODIZL6_EBOK.phl is typical for these files. Files like these are sometimes connected to odizl.

All other PHL files (35%) have no uniform format, often, for example, ZIP, FORMAT, PHOTO and PBLF. These files are often connected to xled, unknown, portuguese, python, black, court, guide, para or todo. Drag & drop your file here to see the file format and a preview of your PHL file!