Using Excel as Database - Update command sometimes doesnt work correctly. Why could it be?

Hi @Semih Öztürk​ ,

It could be because of extra spaces that make the column values fail whatever filter you are using.

Could you try trimming the column value and try update it (TRIM([ColumnName]))?

Kind Regards,

Ashwin A.K

You say doesn't give any error, does this mean you are wrapping in a Try/Catch block? What is the syntax of the call you're making that only sometimes works?