If you have been using DNAGedcom Client to download your Ancestry files recently, you will have noticed that it has another button "Collins's Leeds Method 3D #".This is a beta development that produces clusters based upon your Ancestry database. Using the default values revealed takes seconds. Using other values can take hours. Results are stored as 2 files, 1 x Chrome .html, 1 x Excel .xslx. The files arising from using default values are tiny; using 20/3000, for example, .xlsx can be c.25Mb.
The .html display figures "little green trees" if there is an associated Ancestry family tree and a click will lead to its display after you login to your Ancestry a/c.
DNAGedcom Client can also download data from other than Ancestry but I do not know if it produces "clusters" from other sources; it may well do.
