I am unable to install MS Office LTSC 2021 on my iPad.

For Office to function on an iPad with a screen larger than 10.1", you'll need a Microsoft 365 subscription. Office 2021 does not include this. You can download Office for iOS from the Apple App Store. It does not include all the functions of the desktop software, but is a light version with only the essential commands.

Hi @Shanky Tyagi

Welcome to Q&A forum ~

The system requirement for Office LTSC 2021 is the three most recent versions of macOS, not iOS.

The following image is from link: Office LTSC 2021 Suites.

As we focus more on general issues of Office on Windows or macOS machine, if you need further issue of Office on mobile machine, I suggest you post a new thread on Microsoft Answers Community --- Microsoft 365 and Office.

Thanks for your understandings.

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