Excel validations for nearly 5k rows

Hi All,

 We a requirement to read excel and validate for empty rows , validation of mandatory fields and datatype validations , there are around 15 columns in each row, we have used readexcelsheet function and did the validations.

  Now user wants to upload a excel with around 5k rows and due to which our code is throwing 603 error in site .

 Could you please let me know the best approach for handling this type of huge data and validations more effectively.

 Thanks in advance!!!

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