Compatibility record
Does Claude support Spreadsheet analysis?
Supported with conditions
Claude accepts XLSX when code execution is enabled and can analyze CSV, TSV, and spreadsheet data in its computing environment.
Last verified2026-07-27
Confidencehigh
Primary sources2
What this state means
Supported with conditions, with the qualification kept attached.
XLSX upload requires code execution and file creation to be enabled.
Capability definition
Reads and analyzes structured spreadsheet files such as XLSX or CSV.
Scope boundary
Reading a CSV as plain text is weaker than formula-aware or code-assisted spreadsheet analysis.
Evidence
Primary records behind the answer.
- 01
“Claude can analyze both text and visual elements.”
- 02
Create and edit files with Claude
“Claude can execute code to create and work with files.”