: Microsoft stopped supporting Office 2010 on October 13, 2020. No more security updates or technical support are provided.

: Many 32-bit Office add-ins and ActiveX controls do not work with the 64-bit version.

If you are looking for a "paper" (technical documentation or guide) regarding the official Microsoft Office 2010 Excel x64 version, here is the essential technical overview: Overview of Excel 2010 (64-bit)

One of the most critical advantages of the x64 architecture in Excel 2010 was its ability to utilize physical RAM far beyond the previous limitations. In the 32-bit era, even if a workstation had 16GB of RAM, Excel could only access a fraction of it, leading to "Out of Memory" errors when dealing with large workbooks or complex pivot tables. The 64-bit version effectively removed this "glass ceiling," allowing power users to build spreadsheets that were gigabytes in size. This was particularly transformative for financial analysts, engineers, and scientists who required the ability to process millions of rows of data without crashing their systems.

: Downloading software from unofficial uploaders on torrent sites carries significant risks of malware, trojans, or backdoors.

Microsoft Office 2010 Excel X64 offers a range of benefits to users, including:

This was the “thingy” magic.