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Unnecessary add-ins (file names) are displayed

[Q] When I select Developer tab, and click Excel Add-Ins (Office 365 Excel, Excel 2019 or Excel 2016) or Add-Ins (Excel 2013) to use XLPack add-ins, unnecessary add-ins (file names) is displayed as follows.

[A] You can ignore these add-ins (files), but do not check them.

Normally, the installer determines the bit version of Excel (32/64 bit) and installs the appropriate add-in. However, if the bit version cannot be determined because Excel is not installed, or if both 32-bit and 64-bit Excel are installed, both 32-bit and 64-bit add-ins will be installed. If Excel is started in such a case, unnecessary add-ins (file names) will be displayed in the list as shown above even though the add-ins which do not match the bit version of Excel being started does not work and is unnecessary.