Spreadsheet: Invalid horizontal alignment value in exported Excel file

Unplanned

Last Updated: 17 Jul 2025 10:35 by Doug

Doug

Created on: 17 Jul 2025 10:35

Category: Spreadsheet

Type: Bug Report

Spreadsheet: Invalid horizontal alignment value in exported Excel file

When copy-pasting a cell from Excel to the Spreadsheet, our component then generates an invalid horizontal alignment value, which does not conform to the document format specification:

<alignment horizontal="start" vertical="bottom" />

The valid values for horizontal do not include start:

<simpleType name="ST_HorizontalAlignment">
	<restriction base="xsd:string">
	<enumeration value="general"/>
	<enumeration value="left"/>
	<enumeration value="center"/>
	<enumeration value="right"/>
	<enumeration value="fill"/>
	<enumeration value="justify"/>
	<enumeration value="centerContinuous"/>
	<enumeration value="distributed"/>
	</restriction>
</simpleType>

Here are the steps:

1. Copy some basic content from Excel (two text cells)

2. Paste the content to the Telerik Blazor Spreadsheet component and save the XLSX file

Attached Files:

telerik-spreadsheet-10-33-32.zip

Duplicated Items

SpreadProcessing: XlsxFormatProvider: InvalidOperationException: 'Not supported from value: start' when importing