Access 97/2000 uses the older .mdb file format. Objects like reports and forms can be converted to newer Office formats when opened in newer Access versions. This allows better compatibility with PowerPoint and other Office programs[1][6].

Limits when importing graphs and objects into PowerPoint

There are limits on the amount of data that PowerPoint 97/2000/XP can handle from other Office documents, like only 32,000 data points per data series in 2D charts[5][19]. Exceeding these limits can cause loss of data.

Compatibility issues with older Office versions

Newer Office documents with features not supported in older versions can cause problems when opened, like not allowing editing. Saving as the older .ppt format first can help[10].

File formats changed after Office 2007 to .pptx etc, older .ppt files are still compatible. Can save down to older formats when needed[6].

Converting files to maintain compatibility

Can explicitly convert embedded Office objects within documents to maintain backwards compatibility[11].
Saving presentations as PowerPoint templates (.potx) rather than standard .pptx files can avoid losing fonts, colors etc when changing slide size[8].

Tricks for PowerPoint 97/2000

Some formatting dialogs in PowerPoint 2000 are the same as 97, keyboard shortcuts also still work[15].
Can get the old PowerPoint 97 slide view in 2000 by holding control while clicking Slide View[15].

In summary, compatibility with older Office versions takes some care but there are techniques like conversions and format changes that can help access and share content between versions. Paying attention to data limits and following best practices for backwards compatibility is key.