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Viewer issue - unknown file format. 2021-10-27t23:11:02.594z by romeroroblesa

ded4d021-d00e-4c60-9933-8857eecd0543/90099089_A.pptx

Originated From: https://api.groupdocs.app/viewer/v1/viewer/loadDocumentDescription
User URL: https://products.groupdocs.app/viewer/view?file=ded4d021-d00e-4c60-9933-8857eecd0543/90099089_A.pptx
Exception: Unknown file format.
InnerException: ZipEntry::ReadHeader(): Bad signature (0xDE4F6A8A) at position 0x00094031

Could you please share the problematic file? We’ll then look into this issue.