To set up a ModelSim project with the ModelSim-Altera interface

If you have not already done so, set up the ModelSim-Altera working environment.
Start the ModelSim software.
To specify the project directory:
1. On the File menu, click Change Directory.
2. In the Directory Name box, type the path to the project directory .
  or
  In the Look in list, select the project directory.
3. Click Open.
Note: If you are performing a functional simulation, the project directory is usually the directory that contains the design files. If you are performing a timing simulation, the project directory is the <project directory>\simulation\modelsim directory or the location you specified in the Output directory box of theSimulation page in the Settings dialog box.
To create a new work library:
1. On the File menu, point to New and click Library. The Create a New Library dialog box appears.
2. Under Create, click a new library and a logical mapping to it.
3. In the Library Name box, type the library name.
4. In the Library Maps to list, select the work library.

Note:

When you run the ModelSim software independently from the Quartus^® Prime Standard Edition software, you should name your library work.