GEDmatch.com is proving to be a valuable resource for genetic cousins to find their most recent common ancestor. So far I have found the common ancestor for six of my matches. This post will only be of interest to those who have test results from Family Tree DNA Family Finder or 23andme Relative Finder autosomal DNA tests who are interested in using GEDMatch.com utilities. This is an overview of how to setup GEDMatch.com web utilities for researching 23andme Relative Finder Results and Family Tree DNA Family Finder Results.
There are some that feel that the privacy and match restrictions at 23andme and Family tree DNA are too restrictive. People ask how are we supposed to evaluate matches and find common ancestors if we do not know who they are. Others want to know if two people match who do they match in common. Still others want a way to compare family trees to see who the common ancestors are. GEDMatch.com provides several utilities that make our results much more useful. Please review terms of use for 23andme and Familytree DNA as well as Gedmatch.com before following these guidelines. In all cases the respective sites policies over rule any conflicting information shown here.
First by uploading your data to GEDMatch.com your matches are easily compared with the other public results. The email address is visible which makes it easy to contact your matches. The downside is this openness also makes it easy for spammers to get the email address so an email address just for GEDMatch might be something to consider.
There are four sets of data files you can upload to GEDMatch.com for use with their utilities.

So here are the steps to follow. These links are valid today and are subject to change. In any case these instructions tell you the steps and where to look.
1) First read GEDmatch.com Privacy Statement
MENU ITEM: GEDmatch.Com policy statement
2)Next upload your raw DNA data files depending upon which testing company you used. Be sure you write down the kit number GEDmatch.com assigns you. Note the private option severely limits the use of GEDMatch.com, I mistakenly entered one file as private and quickly discovered that I could not compare private data with public data. Everyone has their own comfort level. All you are sharing at this level is your kit number, your email, your name and , the amount you share with others value in Centimorgans. To be really useful the data needs to be public.
a To upload Family Tree DNA Family Finder raw data file follow these instructions to upload autosomal DNA results from FTDNA
MENU ITEM: “Upload your FTDNA FF Autosomal DNA raw data file”
if you also want to compare the X Chromosome data also upload that file following these instructions.
MENU ITEM: “Upload your FTDNA FF X-DNA raw data file”
b To upload 23andme Relative Finder raw Data File follow these instructions
MENU ITEM: “Upload your 23andMe DNA raw data file”
I suggest seeing how this part works before adding other files but that’s up to you.
3 Upload your match file – this is the list of names that you match and this is very useful for the triangulation utility it tells you which of your matches also match others. This file also should be sanitized by deleting any notes or other references besides the name. I also removed email addresses but I’m not sure if that is necessary. To sanitize open in Excel or other spreadsheet program, edit , then save in the same format you opened.
Family Tree DNA Customers use this menu item
MENU ITEM: Upload your FTDNA FF match results file
23ANDME Customers use this menu item.
MENU ITEM: Upload your 23andMe Ancestry Finder file
Step 4
Your GEDCOM is a universal genealogy file format. Most genealogy programs can export your data as a GEDCOM. The purpose of uploading the GEDCom files is to allow you to compare your genealogy files with your other matches to find common ancestors. In essence the DNA tells you who you match the GEDCOM utility helps you identify the possible common ancestor that caused you to match. The ancestor-projects.com utility lists your gedcom data as part of the match grid making it much more useful.
To upload your GEDCOM make sure you have sanitized it first as there are real privacy issues with sharing an improperly prepared GEdcom. I suggest preparing it reimporting it as a new file and checking it. Also be sure to check no when the Gedmatch upload utility asks if you want to display notes. When it is ready then upload to
MENU ITEM:Upload your GEDCOM genealogy file
Allow a few hours for everything to populate then start playing with the utilities. Ill write more another time about what you can do with the utilities. These steps are also needed before one can sign up for the ancestor-projects.com Cottrell Family Research Site.
Errors or parts that are confusing please let me know.