It looks like these iProperties you want to enter are a small number and will likely not change much. You can build these in to an external rule using an arraylist of strings and select them by a Input list box and input box. No need for excel unless you have this information all ready prepopulated in some control document you are using. Can you tell us how you will be interacting with this information? Are you looking for individual entry on each document or looking to use static information to fill out multiple documents?
External Rule
Dim oEngineer, oCheckedBy, oProject, oCompany As String
'[ Engineer
Dim Engineers As New ArrayList
Engineers.Add("David")
Engineers.Add("Mark")
Engineers.Add("Cassandra")
oEngineer = InputListBox("Pick One", Engineers, d0, Title := "iProperties", ListName := "Engineer List")
iProperties.Value("Project", "Engineer")= oEngineer
']
'[ Checkers
Dim Checkers As New ArrayList
Checkers.Add("DA")
Checkers.Add("AD")
Checkers.Add("FD")
oCheckedBy = InputListBox("Pick One", Checkers, d0, Title := "iProperties", ListName := "Checked By List")
iProperties.Value("Status", "Checked By") = oCheckedBy
']
'[ Companies
Dim Companies As New ArrayList
Companies.Add("DADDT")
Companies.Add("Icescream")
Companies.Add("Dirt Removal")
oCompany = InputListBox("Pick One", Companies, d0, Title := "iProperties", ListName := "Companies List")
iProperties.Value("Summary", "Company") = oCompany
']
oProject = InputBox("Prompt", "Project Name", "Enter Project Name here")
iProperties.Value("Project", "Project") = oProject
For multiple document using static information from excel sheet use the below rule
iProperties.Value("Project", "Engineer") = GoExcel.CellValue("filename.xls", "Sheet1", "A2")'Enter File path
iProperties.Value("Status", "Checked By") = GoExcel.CellValue("filename.xls", "Sheet1", "B2")'Enter File path
iProperties.Value("Summary", "Company") = GoExcel.CellValue("filename.xls", "Sheet1", "C2")'Enter File path
iProperties.Value("Project", "Project") = GoExcel.CellValue("filename.xls", "Sheet1", "D2")'Enter File path
Find the excel snippets here

A text file may be faster but formatting and reading the file via code is harder to set up and may not be user friendly at dealing with lists etc.
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Regards
Alan