diff --git a/docs/index.md b/docs/index.md
index c317fa9..df8d3e2 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -7,10 +7,10 @@
 Currently this will print out:
 
 ```sh
-Usage: sheetui [OPTIONS] <WORKBOOK>
+Usage: sheetui [OPTIONS] [WORKBOOK]
 
 Arguments:
-  <WORKBOOK>
+  [WORKBOOK]
 
 Options:
   -l, --locale-name <LOCALE_NAME>      [default: en]
@@ -20,6 +20,8 @@ Options:
   -V, --version                        Print version
 ```
 
+If you do not provide a workbook path, sheetui will open an empty workbook.
+
 ## Supported formats
 
 Currently we only support the [ironcalc](https://docs.ironcalc.com/) xlsx
diff --git a/docs/navigation.md b/docs/navigation.md
index dff745e..a9e3f06 100644
--- a/docs/navigation.md
+++ b/docs/navigation.md
@@ -32,6 +32,8 @@ will clear the numeric prefix if you want to cancel it.
 * 'I' will toggle italic on the cell. 'B' will toggle bold.
 * `Ctrl-h` will shorten the width of the column you are on.
 * `Ctrl-l` will lengthen the width of the column you are on.
+* `o` will insert a row below the selected cell, move one cell down, and enter edit mode
+* `O` will insert a row above the selected cell, move one cell up, and enter edit mode
 
 ## Other Keybindings
 
diff --git a/src/main.rs b/src/main.rs
index cd6b9ac..a80d330 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -15,7 +15,7 @@ mod ui;
 #[command(version, about, long_about = None)]
 pub struct Args {
     #[arg()]
-    workbook: PathBuf,
+    workbook: Option<PathBuf>,
     #[arg(default_value_t=String::from("en"), short, long)]
     locale_name: String,
     #[arg(default_value_t=String::from("America/New_York"), short, long)]
@@ -27,7 +27,11 @@ pub struct Args {
 type ReadFn = Box<dyn FnMut() -> anyhow::Result<event::Event>>;
 
 fn run(terminal: &mut ratatui::DefaultTerminal, args: Args) -> anyhow::Result<ExitCode> {
-    let mut ws = Workspace::load(&args.workbook, &args.locale_name, &args.timezone_name)?;
+    let mut ws = if let Some(workbook_path) = &args.workbook {
+        Workspace::load(workbook_path, &args.locale_name, &args.timezone_name)?
+    } else {
+        Workspace::new_empty(&args.locale_name, &args.timezone_name)?
+    };
     let mut read_func: ReadFn = if let Some(log_path) = args.log_input {
         {
             let log_file = std::fs::File::create(log_path)?;
diff --git a/src/ui/mod.rs b/src/ui/mod.rs
index d0bd2c0..47d8268 100644
--- a/src/ui/mod.rs
+++ b/src/ui/mod.rs
@@ -881,6 +881,18 @@ impl<'ws> Workspace<'ws> {
                         self.state.char_queue.push('g');
                     }
                 }
+                KeyCode::Char('o') => {
+                    self.book.insert_rows(self.book.location.row+1, 1)?;
+                    self.move_down()?;
+                    self.handle_movement_change();
+                    self.enter_edit_mode();
+                },
+                KeyCode::Char('O') => {
+                    self.book.insert_rows(self.book.location.row, 1)?;
+                    self.move_up()?;
+                    self.handle_movement_change();
+                    self.enter_edit_mode();
+                },
                 _ => {
                     // noop
                     self.state.char_queue.clear();