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“Supermetrics is a Bitter Experience! We can pull data from nearly any tool, schedule updates, manipulate data in Sheets, and push data back into our systems.”
This error appears because NetSuite exports files with a .XLS extension but fills them with XML Spreadsheet 2003 content. Excel detects this mismatch and throws a security warning to protect you from potentially corrupted files.
Here’s why this happens and how to get your NetSuite data without triggering these annoying warnings.
Bypass the format mismatch with direct data connections
Coefficient eliminates this problem by connecting directly to your NetSuite API instead of relying on file exports. Your data flows straight into Excel in native format, so there’s no file extension mismatch to trigger warnings.
How to make it work
Step 1. Set up the direct connection.
Install Coefficient in Excel and have your NetSuite admin configure OAuth 2.0 authentication. This one-time setup creates a secure API connection that bypasses NetSuite’s export system entirely.
Step 2. Import data using Records & Lists.
Select any NetSuite record type or list from Coefficient’s sidebar. Choose your fields, apply filters if needed, and preview the data. When you import, it appears directly in your Excel workbook in proper .XLSX format.
Step 3. Refresh data without file downloads.
Use the refresh button to update your data or set up automatic refresh schedules. The data synchronizes in real-time without creating any files that could trigger format warnings.
Work with NetSuite data the way Excel expects
Stop dealing with security warnings and format mismatches. Coefficient delivers clean NetSuite data directly to Excel, ready for analysis without compatibility issues. Start using Coefficient to eliminate export headaches.
