The internal data and structures of spanned Zip files are identical to those of split Zip files. The only differences between them are the names of the parts of the file, that is:
Each part of a split Zip file has a different extension (such as ‘mysplit.z01’, ‘mysplit.z02’, etc., and ‘mysplit.zip’ for the last part). While all parts of a spanned Zip file have the same name (such as ‘myspan.zip’).
Therefore, the way to repair your spanned Zip files is just similar to that for split Zip files(assume your span file name is ‘myspan.zip’), as follows: