Open DTA File
DTA extension files are used by IWIS Chain Engineering as a database.
IWIS Chain Engineering is a calculation program in the design and prototyping of the automotive driving chain.
IWIS Chain Engineering deals with chain drives for power transmission and vehicle movement.
In a chain-driven system, the transmission consists of at least one drive sprocket and one driven sprocket.
DTA files contain data used to calculate drive chain engineering specifications.
Usually you can find that the DTA file is called IS.dta which is the system database, and for the Chain itself, the database file is IW.dta.