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NUMBERS at a glance
NUMBERS
Numbers emerged as part of Apple's iWork suite, which offered a different design and document philosophy from Microsoft Office.
PMD at a glance
PMD
The .pmd extension appeared in Sony's prosumer and professional recording device output alongside other Sony-proprietary formats like MQV, serving as a companion metadata or media descriptor file.
Format comparison
| Feature | NUMBERS | PMD |
|---|---|---|
| File type | Spreadsheet | Video |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2007 | 2004 |
| Inventor | Apple | Sony |
| Status | active | legacy |
| Primary use cases |
|
|
When to use each format
When to use NUMBERS
- Your source file is already in NUMBERS.
- Preserve source expectations before exporting to PMD.
- NUMBERS is commonly used in spreadsheet workflows.
When to use PMD
- Your target workflow expects PMD.
- Improve delivery compatibility with PMD.
- PMD is commonly used in video workflows.
FAQs
Why convert NUMBERS to PMD?
Convert to PMD when maintaining compatibility with a Sony-centered production workflow, preserving source media from a professional ingest system, or migrating archived broadcast assets that were originally wrapped for structured editorial exchange.
What changes when converting NUMBERS to PMD?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting NUMBERS to PMD?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.