The DAQ Assistant is part of NI-DAQ. You will need to install NI-DAQ to get it.
If you just want to read data at home, can you modify the project at work to eliminate the DAQ Acquire/Generate/?? step which uses the DAQ Assistant? Alternately, you can create a different project to read and analyze the logs. The log files are in TDMS format, so they can also be read by LabVIEW, Excel, DIAdem, etc., although some conversion may be necessary in some cases.