When i want to open a file from a program, like word, sketchup, photoshop etc. the finder now arranged the files by the size (see attachment). How can i arrange the files by name, date etc? Or disable this arrange by option?
yes, it's grouping by size. On the top left corner, after the back/forward arrows, click on that options button and select "None". It will remove those size groups. Then just click on the name column, or date, etc to sort.