Now, click on 'Select File' to upload data into the current worksheet. Choose the excel CSV file you added data into.

Then, select any of the options below to further configure how data must be uploaded:

Allow partial upload - upon choosing this option, all the valid rows would be added into the worksheet and an error file would be generated for invalid rows.
Upload without validations - upon choosing this option, no validation would be performed on the uploaded data except for entry permission checks.
Update existing and new data - upon choosing this option,
- the worksheet column(s) marked 'unique' appear here by default under Columns as primary identifiers
- these identifiers are checked with data in the uploaded CSV file.
- if the identifiers in new data match with the existing data in worksheet, the data for that row will be updated.
- otherwise, a new entry/row would be created in the worksheet.

Finally, click on UPLOAD. You get a message saying your file is being uploaded.

How to upload bulk data into the worksheet from view page?