It complains '0x00 hexadecimal is invalid.' *sometimes* (not all the time) what's wrong with xlsx format?
1 Answer, 1 is accepted
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Martin Ivanov
Telerik team
answered on 23 Jan 2019, 03:54 PM
Hello Abel,
In order to investigate what happens I would ask you to prepare some runnable code and share it here or in a new project via the ticketing system (accessible from your telerik.com account).