In the emulator: file/configuration/load from ascii file
Select from the ep128uk directory the EP_128k_Tape_FileIO_TASMON config file.
This is have a fast memory test, and virtual file IO for accessing your PC files.
Make any work directory, and unpack to this directory the downloaded programs.
In the emulator options/set working directory
Select your work directory.
Now when the emulated Enterprise at the IS-BASIC prompt, then press the F1 key.
Then a file selection window displayed, now you can select which file wanted to load.
Usualy the .COM files are the starting file of the programs.