Extract text from CHW files
To convert your CHW file to another format, you need Microsoft HTML Help Executable or other System software.
To convert other file formats to the "Help Index Cache" file type, you need software like Microsoft HTML Help Executable or a similar tool.
A .CHW file is a proprietary Compiled HTML Help Index generated automatically by the Microsoft Windows operating system. These files serve as a binary search cache and layout configuration for a corresponding CHM (Compiled HTML Help) document, allowing users to perform keyword searches and maintain window size preferences.
Users frequently face difficulties with .CHW files because they appear unexpectedly alongside help documents and cannot be opened manually. Because they contain only internal indexing data and window state definitions, they are not readable documents. Attempting to open a .CHW file in a text editor like Notepad++ will display unintelligible binary code. Furthermore, if this index becomes corrupt, the associated Help file may crash or fail to search correctly. For practical use, you do not convert the .CHW file itself. Instead, if you need to archive or edit the help content, you must locate the parent CHM file and convert that to PDF, HTML, or EPUB. If you simply want to view the content, ensure the .CHW is in the same directory as its parent CHM and double-click the CHM file.
Convert.Guru analyzes your CHW file, detects the exact format, and lets you read the text inside.
Users also converted CHM, CRDOWNLOAD, PNG, CHQ and XPS files.
If you want to convert CHW file to TMP, TEMP, CACHE, LOG, BAK, OLD, NEW, PART, DOWNLOAD, CRDOWNLOAD, LOCK or PID, you can use Microsoft HTML Help Executable or similar software from the "Help System Search Index" category. In the File menu, look for Save As… or Export….
To convert DEVICE, CACHE, SOCK, SYMLINK, PID, MOUNT, FIFO, LOG, PIPE, TMP, JUNCTION or TEMP files to CHW, try Microsoft HTML Help Executable or another comparable tool in the "Help System Search Index" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our CHW converter.