# \#forum

**URL:** https://forum.xltoolbox.net/tag/forum/3.md

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## [Not able to close excel after installing the Toolbox add-in](https://forum.xltoolbox.net/t/not-able-to-close-excel-after-installing-the-toolbox-add-in/859)

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**Author:** [@sonal](https://forum.xltoolbox.net/u/sonal)\
**Replies:** 0\
**Last updated:** [April 17, 2021, 10:32am UTC](https://forum.xltoolbox.net/t/not-able-to-close-excel-after-installing-the-toolbox-add-in/859 "2021-04-17T10:32:10Z")

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After installing the Toolbox add-in, I am not able to close the Excel. An error box appears saying “Reference isn’t valid”. Please help how to resolve this? Thankyou.

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## [The forum was repaired](https://forum.xltoolbox.net/t/the-forum-was-repaired/313)

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**Author:** [@Daniel](https://forum.xltoolbox.net/u/Daniel)\
**Replies:** 0\
**Last updated:** [August 8, 2017, 7:32pm UTC](https://forum.xltoolbox.net/t/the-forum-was-repaired/313 "2017-08-08T19:32:56Z")

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The forum has not been working properly for several months, but I’ve finally fixed it. You may have been wondering why you did not receive sign-up confirmation e-mails, or why your e-mailed response never appeared in th…