How to Fix Incomplete Excel or CSV Imports to SharePoint Lists
Question details
The user is attempting to import an Excel or CSV file to create a SharePoint list, but the import remains incomplete without displaying any error message.

- Product
- Microsoft SharePoint
- Device & OS
- not provided
- Scenario
- Importing a large or complex dataset from an Excel workbook or CSV file to create or populate a new SharePoint list via the web interface.
- Observed behavior
- The import process fails to complete or hangs indefinitely, and no specific error code or message is provided to indicate why it failed.
Before trying alternative methods, ensure your Excel data is formatted as a standard Table (Insert > Table) and check for any blank columns, hidden characters, or unsupported data types that might disrupt the SharePoint import.
Export Directly from Excel Desktop Application
For large tables, bypassing the SharePoint web importer and exporting directly from the Excel desktop application is generally the most stable and reliable method.
The web-based import tool often times out or fails silently with large datasets. Utilizing the native export feature inside the desktop version of Excel forces a more direct synchronization with your SharePoint site.
Launch your Microsoft Excel desktop application and open the large spreadsheet you want to import.
Select any cell within your data range, go to the Insert tab, and click 'Table'. Ensure your table has headers.
With the table selected, navigate to the 'Table Design' tab that appears on the ribbon.
Click the 'Export' button on the ribbon and choose 'Export Table to SharePoint List' from the dropdown menu.
Enter your target SharePoint site URL and provide a name and description for the new list, then click 'Next' to finalize the transfer.

Use Power Automate to Transfer Data
If direct exporting fails, you can manually create an empty SharePoint list and automate the data migration row-by-row using a Power Automate flow.
Isolate the Issue with a Test File
Test the SharePoint import function with a smaller, simplified file to determine if the problem is specific to your data or a broader system issue.
Handle Large Spreadsheets with WPS Office
Struggling with sluggish Excel files or formatting errors? WPS Office provides a lightweight, highly compatible, and free alternative to Microsoft Office. It effortlessly handles massive datasets and CSV files, ensuring smooth data preparation for complex web imports.
- 1. Download and Install WPS Office: Visit the official WPS website, download the free version, and follow the simple installation prompts.
- 2. Open your large dataset: Launch WPS Spreadsheet and easily load your large Excel or CSV files without experiencing severe lag.
- 3. Clean and format data: Use built-in data processing tools to remove blank rows, fix formatting issues, and prepare your tables for SharePoint.

Frequently Asked Questions
Why does my SharePoint Excel import hang without an error?
This usually happens when the Excel or CSV file is too large for the web importer to process within its timeout limit. It can also occur if the file contains hidden formatting errors, complex formulas, or characters that SharePoint's web interface cannot parse.
Can I copy and paste data directly into a SharePoint list grid view?
Yes, you can use the 'Edit in grid view' feature in SharePoint to paste data directly. However, pasting a massive amount of rows (e.g., thousands) at once may cause your browser to freeze or the paste operation to fail silently. It is recommended to paste in smaller batches of 100-200 rows.
Is there a file size limit for importing Excel to SharePoint?
While SharePoint lists can hold up to 30 million items, the web-based 'From Excel' import tool often struggles with files larger than a few megabytes or containing thousands of rows. Bypassing the web interface and using the Excel Desktop 'Export' feature is far more reliable for large datasets.




