The current software for spectral extraction of UVOT GRISM data
A brief guide to extracting the data using the old Ftool uvotimgrism is is given in this link, and briefly outlines how to do some final corrections to the the image data, how to extract the spectrum, and possible ways to do further analysis. The new UVOTPY software can be found here .
The IDL software for the Swift UVOT grisms developed by Wayne Landsman can be downloaded here .
