Files with the .kismac extension can only be opened by certain applications. The operating system does not have a default program associated with the .kismac file type when you try to open it and Windows does not recognize the extension. KisMAC is a wireless network discovery tool for Mac OS X that supports a range of file formats, including the KISMAC extension. These KISMAC files are used as KisMAC Webservice Files.
KISMAC files belong to the Data Files category, along with over a thousand other extensions. KisMAC itself is the most popular software supporting KISMAC files, though it seems the tool is no longer maintained.
On websites you can find information on opening KISMAC files and lists of applications supporting them. However, .kismac files may be data rather than documents or media, so they may not be meant to be viewed.
To open the file type on Mac OS, first select and install software that handles KISMAC files. Then right-click on the file, choose “Open with” and associate the software with the .kismac extension. Adding it to the Windows Registry can also associate the extension.
Many files contain only text, so there are generalized ways to open unknown file types. But for media or data like .kismac files, you need the correct specialized software.
KisMAC