No, dots at the end of the file like apartment124..jpg I have already deleted the extra dots. In Total Commander I should only write "jpg" to change the extension but I wrote ".jpg" so it added one more extra dot to all the files which I chose for changing the extension. Now everything is great. Though I spent a lot time trying to find a mistake. I found great deal of good programs useful for future. And also this forum with very helpful members. Thank you all and thank you Sacred Member.
Hope I use the word "extension" in the right sense, extension is .txt .dox .svg, right?