Hi Ian, Thank you. I found the FRX structure in the Tools\FileSpec directory.
About Tag and Tag2 fields: it appears that when the text in these columns are deleted, the "save printer environment" flag in the "Report Properties" dialog, "Page Layout" tab is turned off.
Some printer information remains in the EXPR column. I assume i can leave these alone and that all I need to do is set Tag and Tag2 columns to blank.
Thanks for the help! Best, Chaim

Thanks also to you, Tore, for your earlier help.