A kml file extension is related to the Win48, an emulator of HP 48 calculator. A kml file stores script.
There are 2 other file types using
the KML file extension!
.kml - Google Earth Keyhole Markup language data [common]
.kml - Hiebook e-Book
Detailed description
Software that open kml file
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What is kml file? How to open kml files?
The kml file extension is associated with the Win48, an emulator of HP 48, a series of graphing calculators using Reverse Polish Notation (RPN) and the RPL programming language.
The kml file contains Win48 script.
The default software associated to open kml file:
Emu48 
Company or developer:
Sebastien Carlier
Emu48 can emulate a HP38G, HP39G, HP40G, HP48SX, HP48GX and a HP49G. The emulator is running on all Win32 platform.
Help how to open:
Use Win48 to work with *.kml files.
How to convert:
As far as we know, this .kml file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.
Related links:
HP calc software and information.
List of software applications associated to the .kml file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open kml file, edit kml file, convert kml file, view kml file, play kml file etc. (if exist software for corresponding action in File-Extensions.org's database).
Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting kml files.
Software that open kml file - HP 48 emulator Win48 script
Programs supporting the exension kml on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Emu48 for open kml file action.
Programs that can create kml file - HP 48 emulator Win48 script
Programs supporting the exension kml on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Emu48 for create kml file action.
Unspecified and all other actions for computer programs working with kml file - HP 48 emulator Win48 script
Click on the software link for more information about Emu48. Emu48 uses kml file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).
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