Sally_Stitts - 2:17 am on Oct 11, 2011 (gmt 0)
You can name the text file anything you wish.
Ahh, someone with the facts. There you have it.
Last week I broke down, and updated my "Master" index. I too, became concerned that my filecounts were flaky, depending upon where I looked. It was painful, but I found about 5 problem files (out of ~350). Now, everything agrees - masterfile, sitemap.html and sitemap.txt. I feel better, when I THINK I know what I am doing - ha-ha.
Now, if I could only find out which 2 files Google is NOT indexing - I haven't figured out how to do that yet. But it is only 2 files, so the heck with it.