Thank you @Byron_JMP for your suggestion. But it didn't work in my case, perhaps we have different import settings.
my original table in excel looks like this, with line brakes in cells B4 and B7
using the on the fly copy and paste with column names i get the following image. where every line brake is interpenetrated as a new table row,
using the import wizard i get the following where the original line brakes within the cells have been removed together with the reminder of its content.
Therefore, I do not get a whitespace which its removal would solve anything.
Ideally, this could be fixed within JMP as part of the way it reads the data while importing. JMP should
Interpret this as either a new line within a cell or just a space between characters.
when opening the excel file in SAS using default settings, the result is much better. The line brake in the cell was just removed. This maintains the overall integrity of the cells, rows and columns of the file.
Iit would have been better to add a space though. Not sure how i would be able to add it myself later if i had to use the text for analysis.
the way i did manage to solve it so far is by searching and replacing all the new lines in Excel prior to the import. the new line character to search for in excel is Ctrl+j. replacing it with a simple space has given me the the least confusing outcome.
Hope you can address this to the right person to fix it in future versions of the program.
If anyone has other solutions please do share. I am sure many files imported from excel and other formats that allow for line brakes within a cell has produced imperfect data sets.