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Viewer issue - failed to open presentation with error: unknown file format. 2021-11-10t18:47:41.616z by utariart

d3539863-d275-43e6-bc25-d73714a9520b/~$¦Я¦-TАTВTА¦¦TВ ¦¬¦¬ TБ¦¬¦-¦-.pptx

Originated From: https://api.groupdocs.app/viewer/v1/viewer/loadDocumentDescription
User URL: https://products.groupdocs.app/viewer/view?file=d3539863-d275-43e6-bc25-d73714a9520b/~%24%C2%A6%D0%AF%C2%A6-T%D0%90T%D0%92T%D0%90%C2%A6%C2%A6T%D0%92%20%C2%A6%C2%AC%C2%A6%C2%AC%20T%D0%91%C2%A6%C2%AC%C2%A6-%C2%A6-.pptx
Exception: Failed to open presentation with error: Unknown file format.

utariart-d3539863-d275-43e6-bc25-d73714a9520b.zip (236 Bytes)

Did you use a third party tool to generate this PPTX? It seems that the file is invalid. We cannot open it at our end.