Hi Jeff, here's a suggestion: When entering a table, maybe Polly can announce the table and read each data cell followed by the <th> descriptor for that cell.

Example:

"Table 1: Row 1: [Instance name: z1d.large] ... [vCPUs: 2] ... [Memory: 16 GB] ... [Local Storage: 1 x 75 GB NVMe SSD] ... [EBS-Optimized Bandwidth: Up to 2.333 Gbps] ... [Network Bandwidth: Up to 10 Gbps] ... [pause] ... Row 2: [...]"

This is how a human would read it, so Polly should do it that way too. What a human actually ends up doing though, is reference the preceding row for each subsequent row. Something like "z1d.xlarge has double the vCPUs, double the Memory, and double the Local Storage, with EBS-Optimized Bandwidth and Network Bandwidth the same." -- I don't think you are at that point yet with Polly ;)