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Convert CHM files online instantly, no sign-up required. You can convert your CHM documents on any platform—Windows, Linux, or macOS. Upload your file, choose the output format, and press convert. When the process is done, your OTP file will be ready for download.
The CHM file's size and structure affect conversion time, though most files are processed in seconds. Advanced features allow you to convert password-protected documents and receive conversion results via email.
No matter where you are, convert your CHM documents seamlessly on any device, including smartphones. Available online anytime, this conversion app is completely free for basic scenarios.
Check our videoThe CHM file format was developed by Microsoft for storing and displaying online help documentation, combining multiple HTML pages into a single compressed file. It is commonly opened using Microsoft's HTML Help Viewer, but third-party tools like 7-Zip or SumatraPDF can also extract or view CHM files. The format supports a hierarchical table of contents, full-text search, and embedded multimedia, making it a versatile solution for organizing and accessing help content efficiently.
The OTP (OpenDocument Presentation Template) file format is a standardized template format used for creating presentations within the OpenDocument family of file formats, maintained by the Organization for the Advancement of Structured Information Standards (OASIS). It is primarily supported by open-source office suites like LibreOffice and Apache OpenOffice, as well as other applications that adhere to the OpenDocument standard. The format is based on XML and supports advanced features such as embedded multimedia, customizable slide layouts, and compatibility with other presentation formats like PPT and PPTX through conversion tools.
You can also convert CHM into many other file formats. Please see the complete list below.