I am receiving the same message today. I created an .xlsx Excel Workbook file from a table exported from Access 360 Version 2018 Build 14326.21018. The file has a total of 212 lines, with data in columns A through AL. When I tried to import the file to QB, I received the Object Reference Not Set to Instance of an Object error. Out of curiosity, I opened the exported Excel file I created from Access and clicked File, Save As, and resaved the file - overwriting the existing file - and tried the upload again. I did not receive an error that time and upload was successful. I made no changes to the file, the extension stayed the same (.xlsx), the naming stayed the same, and I did not edit any cells with the file itself. Any idea why it would error out the first time?
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Shirley Prater
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