Problems - Excel Import 1.51

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Hi,

After uploading a excel file display message as follows;

 

"File uploaded.

Temporary filename: C:\PHP\uploadtemp\phpC9.tmp

User filename: Form1.csv

Size: 359

| unavailabl | | | | | | | | | | | |

 

No products_model field in record or incorrect root for category. I cannot import this record!

 

Thats all!"

 

Please explain this error.If you can suggest any solutions.

 

Thank you

 

lakmal