Online preview of Excel files automatically converts types of numbers. A number that is set to REAL BRAZILIAN (BRL) when viewed online by the link is converted to US, with the comma in place of the endpoint and the endpoint in place of the comma. See an example: https://onedrive.live.com/view.aspx?resid=4F569BD6755D422D!195516&ithint=file%2cxlsx&app=Excel&authkey=!AOo1MG6T1A364Qk