1) Asset Import to accept "Working" & "Non Working" Usage Status as well 

2) Checked LastDate & Renew NextDate to display blank results when no data has been imported in these columns.

3) Check Frequency "1" Validation to be changed. 

4) Last Maintenance Date & Next maintenance date to be removed.

5) Replace Special characters NIGHT&SLASHER!@#$%^&*()__+=|\}{[]":><>?/.,~``: AM18-70 

6) Renew Last date column is missing