How To Fix 5V257 - Report does not support this file format; upload a CSV file

5V257 - Overview

• Message type: E = Error

• Message class: 5V - HR: Messages for Belgium

• Message number: 257

• Message text: Report does not support this file format; upload a CSV file

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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5V257 - Details

• The SAP error message 5V257 indicates that the system does not support the file format you are trying to upload. Specifically, it suggests that the report or transaction you are using is expecting a CSV (Comma-Separated Values) file, but the file you provided is in a different format or is not properly formatted as a CSV.
  Causes:
  
  Incorrect File Format: The file you are trying to upload is not in CSV format. It could be in Excel format (.xls, .xlsx), text format (.txt), or any other unsupported format.
  File Extension: The file may have a .csv extension but is not actually formatted as a CSV file. For example, it might be saved in a different format in Excel.
  Encoding Issues: The CSV file may have encoding issues (e.g., UTF-8 with BOM) that make it unreadable by SAP.
  Delimiter Issues: The file may use a different delimiter (e.g., semicolon instead of a comma) which is not