A .CHKN file is essentially a containing all the necessary assets for an IMVU product, including XMF meshes, XRF materials, and texture images. When you save a project in the IMVU Classic editor, it is stored locally on your computer in this format.
Once decompressed, the CHKN reveals a table of contents (TOC). The extractor reads this TOC to know: imvu chkn extractor
Callouts / copy snippets (ready-to-use)