>the 65535 limit on rows and the 32000 point in a series >limit becomes an issue with browsing the ~2 >milion point set However it is possible to create an effective 64000 point set by using two 32000 point sets, using the different x points to effectively move the graph along so it becomes one graph after the other, with a seamless join. I suspect this can be extended ad infinitum using data across sheets if need be. Sure the 65000 row issue is a pain, but when importing, it looks like Excel is friendly, and know where it stopped importing the data, and gives that as the start point prompt for the next import. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics