saving in EXTRAN

I am having problems saving my EXTRAN file in MikeSWMM 2001. When I
open a file that already exists and try to save it as a new name, an
error message comes up saying "ids". Does anybody know why? Is the
file corrupt? Any suggestions would be greatly appreciated.

Jennifer Matik
JMatik@HNTB.COM

I haven't seen the error you are describing, but try using Windows
Explorer to copy and rename the file.

Good Luck,
Andrew B. Scott, P.E.