Corel draw print and merge data

Sir I Sir, as you mentioned, I created CS Vita in Excel sheet create file print and my data certificate design and Excel data sheets 1000 name students row and 7 colum create then I create print merge software is hang popup message is out of memory corel draw and all setting created crushed
I use 16GB memory Ram Intel i3 processor 6th generation
Please solve my problem!

Sir I am using Coral Draw X7
Sir, as you mentioned, CSV format by creating an Excel file to print and merge data