When NDSR is installed, a Foods File is downloaded to your computer (along with a series of files found in an Additional Files folder). The Additional Files folder is discussed in Appendix 18 of the NDSR User Manual.
 
For Windows 10 users, the location is C:\Users\Public\Public Documents\NCC\NDSR XXXX\Additional Files\Database Documentation\FoodsXXXX.
 
The Program Data folder in Windows 10 is often hidden. To unhide the folder, go to Folder and Search Options > Folder Options > View tab and select the Show Hidden Files, Folders, and Drives radio button.
 
The Foods File provides a complete list of NDSR food descriptions, Food IDs, food group assignments and serving count sizes.