# Issue of reading Excel sheet in Katalon Studio 7.9.1

**URL:** <https://forum.katalon.com/t/issue-of-reading-excel-sheet-in-katalon-studio-7-9-1/59080>\
**Category:** Bug Report\
**Tags:** tracked, bugs-report, katalon-studio\
**Created:** [October 11, 2021, 7:06am UTC](https://forum.katalon.com/t/issue-of-reading-excel-sheet-in-katalon-studio-7-9-1/59080 "2021-10-11T07:06:07Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![nam.nguyen](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/nam.nguyen/32/18640_2.png) [@nam.nguyen](https://forum.katalon.com/u/nam.nguyen)\
**Post date:** [October 15, 2021, 1:55am UTC](https://forum.katalon.com/t/issue-of-reading-excel-sheet-in-katalon-studio-7-9-1/59080/3 "2021-10-15T01:55:31Z")

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Hi @gunaapps14,

The excel library of Katalon Studio 7.9.1 might cause conflicts.  
Please try out these solutions and let us know if it works:

- Removing the `stax-api-1.0.1.jar` ([see more](http://forum.katalon.com/t/linkageerror-loader-constraint-violation-when-resolving-field-node-the-class-loader-instance-of-org-codehaus-groovy-tools-rootloader-of-the-referring-class-javax-xml-xpath-xpathconstants/59010/4))
- Upgrade Katalon Studio to 8.2.0 beta

Thanks for your attention.

Regards,  
Nam Nguyen.

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