Unexpected Application Crash on Data Import

Description

The application crashes unexpectedly when importing data from a CSV file using the import feature under specific circumstances. This issue has been observed when the CSV file contains more than 100,000 rows and at least one column has mixed data types (numerical and textual data).

Steps to reproduce

1. Launch the application and navigate to the Data Import feature.
2. Click on 'Import Data' and select a CSV file that meets the following criteria:
   • More than 100,000 rows.
   • At least one column with mixed data types (e.g., numerical and text data mixed).
3. Click on 'Import'.