If some shared parameters in the Shared Parameter File Editor are chosen, as follows:
the Separate Chosen Shared Parameters Out to File button is clicked, and a file name is given, a new shared parameter file will be created to contain all the necessary information for the chosen shared parameters. Here is a sample.
# This is a Revit shared parameter file.
# Do not edit manually.
*META VERSION MINVERSION
META 2 1
*GROUP ID NAME
GROUP 1 For_Walls
GROUP 2 NewDefinitionGroup1
GROUP 3 Group1
GROUP 4 For_Project.rvt
GROUP 5 For_Doors
GROUP 6 Group2
GROUP 7 For_Drawer.rfa
*PARAM GUID NAME DATATYPE DATACATEGORY GROUP VISIBLE
PARAM 7d4c1903-c65e-4bcd-9bce-dd06532af03c Phase Created TEXT 1 1
PARAM 64901a31-62e5-4332-b148-9c4ffb93ae51 WindowFamilyType FAMILYTYPE -2000014 2 1
PARAM d1d46f92-e1bf-43c8-8c75-8d068e075db7 Volume42 LENGTH 1 1
PARAM c0909793-c220-44c5-b231-350aa215b06e int INTEGER 3 1
PARAM 727fa294-66ca-4258-ab24-c74ed280c7f9 Ins_LengthDim_WallsWindows LENGTH 4 1
PARAM c6e8fc94-f300-425d-95de-fbffa3c6aaf9 Phase Created TEXT 5 1
PARAM d29fac95-7a0e-439f-97bd-124a2100ba62 WattageTest21 ELECTRICAL_WATTAGE 6 1
PARAM 4f907896-ee5e-4859-9d2a-a15a38b029bb Operation TEXT 7 1
PARAM 1d14f996-3682-48e5-ad2d-3b4b5c38a59e Base is Attached YESNO 1 1
PARAM c3452bf6-5b1c-4234-9762-a61719a5f305 ColumnsFamilyType FAMILYTYPE -2000100 2 1
The new shared parameter file is ready to be opened back into the Revit Shared Parameter File Editor, or to be loaded into Revit for any operations there.