Importing Multiple Excel Worksheets in EViews7

Hi,
I have never used the command window before when importing data from excel to EViews. I have learnt that there is a way of importing several worksheets at a go in EViews user forum, but failed to follow the commands provided by the contributors.

What I need is to upload all excel worksheets into a single workfile. I have created my workfile for 5-day week frequency; starting from 1999-21-31 to 2015-07-15, using the command: wfcreate(wf=demo) 1999-12-31 2015-07-15. This took me to the window where I had to fill in the dates manually.

I then saved the workfile using the command: wfsave "C:\Users\HUBS\PhD HULL MAIN\Market Efficiency and Corporate Governance\Behavioural Finance\Chapter 4_Herding\data\demo"

To open the worksheet I used: wfopen(wf=demo,page=Untitled) "C:\Users\HUBS\PhD HULL MAIN\Market Efficiency and Corporate Governance\Behavioural Finance\Chapter 4_Herding\data\Demo kn_p kn_cap.xlsx" range="12/31/1999 7/15/2015"

I got an error message that table "12/31/1999 7/15/2015" does not exist. I am therefore stuck there.

I am kindly asking for your help folks for the command codes. Attached find my demo excel file.

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