I can provide the next steps for installing or opening that specific type of file. How to Split and Join Files with 7zip | How to install 7zip
Click OK in the dialog box to recombine and extract the files. Method 2: Quick Double-Click Navigate to the folder holding all parts. the first file ( duo.7z.001 ).
To put together (recombine) a split .7z file—likely named something like duo.7z.001 , duo.7z.002 , etc.—you need to use a file archiver like 7-Zip to join them back into a single usable file. Here is how to put the duo.7z parts together: Prerequisites
