What are the restrictions on importing Microsoft list rows and columns from Excel?

Question

According to the test, the maximum limit of importing list from excel is less than 20000 rows and less than 300 columns. I created 19999 rows and 299 columns of test data in Excel. When importing excel test data, I reported the following error message: unexpected token C in JSON at position 0

How can I determine the limitation of importing list from excel.

Answer 1

@Anonymous ,

Per my research, this error message is not related to limited rows, when you have more than 20000 rows, you will receive an error message “This table exceeds the maximum number of supported rows“:

For your issue, please check if you have Date column in excel table, which may prevent the workbook from being converted, remove some 'Date' data from select rows to compare the result.

You could also switch to another browser to check the result.

Similar issue for your reference:

https://answers.microsoft.com/en-us/msoffice/forum/all/error-when-importing-excel-spreadsheet-to/39719e4f-f612-4525-a3ad-997b7fb1ac89

https://answers.microsoft.com/en-us/msoffice/forum/all/jsonparse-error-when-creating-a-list-from-an-excel/95418734-9a81-4d49-99ed-7f76b1e59aa0

More information about "How to import an Excel spreadsheet to a SharePoint custom list":

https://sharepointmaven.com/how-to-import-an-excel-spreadsheet-to-a-sharepoint-custom-list/

Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link.

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