.FKB File Extension
What is an FKB file?
eBook created by Flipkart, an eBook reading application; contains an eBook with different features, such as different fonts and zoom capabilities; can be downloaded on up to six different devices and cannot be shared with others.
An FBK file can range in size from a couple hundred kilobytes to several megabytes depending on the length of the book and how many images are included.
To download the file from the Flipkart eBooks Android Application, you must first purchase the eBook, then click on your purchased eBook in the Library and the book will begin to download. If you can't find your purchased eBook in the Library, click the Refresh icon.
NOTE: The Flipkart app has been discontinued. Currently, there is no way to convert FKB files to .EPUB files.