You can erase the contents of an RMSfile with toolkit as follows:
Start toolkit on your database:
c:\> toolkit dbname
Select 1 - Data Files Menu from the Toolkit Development Menu.
Select M4 - Erase Contents of Data File from the Data File Menu.
Enter the logical name of the RMSfile you wish to erase, enter yes to confirm, and press STORE <F5> to erase the contents of the RMSfile, or press CANCEL <F1>-X to leave the RMSfile unchanged.
You can erase the contents of a logical RMSfile with the following command:
c:\> clearlf lfname
Lfname is the logical name of the RMSfile.
All data records are removed when you erase an RMSfile.