# Supported questionnaire formats
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Assurance Assistant supports the following questionnaire formats for file upload:
+ **Excel (.xlsx)** – Supported with column mapping for question identification.

Assurance Assistant is optimized for custom file formats and also supports the following industry-standard questionnaire types:
+ **CAIQ** (Consensus Assessments Initiative Questionnaire)
+ **SIG** (Standardized Information Gathering Questionnaire)
+ **Custom DDQs** – Supported via the column mapping feature.