c# - How to Export values to excel with leading '0' -

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i'm developing web application. i'm facing problem when exporting values in grid excel. have declared column data type string column holds integer values. when open exported excel, string column displayed integer , leading '0' in field gets deleted. how handle this.

eg. filed contains vl

export values surrounding ' or " symbols, it's taken string

like:

col1;col2;col3 '001';'002';'003'

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