Why would someone want it today? A niche group of legacy publishing houses still maintain long technical documents (manuals, aircraft maintenance logs, legal documents) in old FrameMaker files that used Adobe Table objects. Opening those files in modern software often breaks the tables. The "portable" version request comes from users who need to extract data from old tables without reinstalling the full FrameMaker suite.

Title: How to Create Professional Tables Like Adobe Table 3.0 – Using Modern Free Tools

Content highlights:

If you have a legal license for Adobe FrameMaker from that era, you might already own Table 3.0. Here is the only safe path:

What about "free download portable" from random sites?
Sites like oldversion.com, portableapps.com (they do not host it), or archive.org may have copies. Warning: Archive.org’s “Adobe Table 3.0” downloads are abandonware. Use them only on an air-gapped, offline virtual machine running Windows 98 or 2000. Never on your main PC.