XLSX tools: inspect, read, diff and validate workbooks; write, edit and convert with --allow-write.
Free
One server, in files & storage. XLSX tools: inspect, read, diff and validate workbooks; write, edit and convert with --allow-write.
Files & Storage
XLSX tools: inspect, read, diff and validate workbooks; write, edit and convert with --allow-write.
The rest either hold an API key issued by the publisher or ask for nothing.
Listed without a verification tick. Read the listing before installing.