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Hello Giovanni and T. Gray,<BR>Thanks for the suggestions. When I loaded the plugins and went to raster>extraction>contour and browsed then entered the file it said it wasn't recognized as a supported file <BR>type. I think it wants tiffs. Is there by chance a way to convert txt to tiff or raster that anyone knows of? That would seem to be an ideal solution.<BR>again, thanks to all who have given me help in the past,<BR>J.R.<BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR> <BR>h<BR> </div></body>
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