# xml format > Format an XML document. > More information: . - Format an XML document, indenting with tabs: `xml {{[fo|format]}} {{[-t|--indent-tab]}} {{path/to/input.xml|URI}} > {{path/to/output.xml}}` - Format an HTML document, indenting with 4 spaces: `xml {{[fo|format]}} {{[-H|--html]}} {{[-s|--indent-spaces]}} {{4}} {{path/to/input.html|URI}} > {{path/to/output.html}}` - Recover parsable parts of a malformed XML document, without indenting: `xml {{[fo|format]}} {{[-R|--recover]}} {{[-n|--noindent]}} {{path/to/malformed.xml|URI}} > {{path/to/recovered.xml}}` - Format an XML document from `stdin`, removing the `DOCTYPE` declaration: `cat {{path\to\input.xml}} | xml {{[fo|format]}} {{[-D|--dropdtd]}} > {{path/to/output.xml}}` - Format an XML document, omitting the XML declaration: `xml {{[fo|format]}} {{[-o|--omit-decl]}} {{path\to\input.xml|URI}} > {{path/to/output.xml}}` - Display help: `xml {{[fo|format]}} --help`