Ch.7z.001 -

A file with the .ch.7z.001 extension represents the first volume of a split archive, requiring all subsequent parts (.002, .003, etc.) to be in the same folder for successful extraction using software like 7-Zip . The user should right-click only the .001 file to initiate the extraction process, which automatically recombines the binary chunks into the original file. For more details, visit File Extensions .