SKILL.md
Sheets Terminal Spreadsheet
Skill by ara.so — Daily 2026 Skills collection.
Sheets is a terminal-based spreadsheet TUI (Terminal User Interface) for viewing and editing CSV files directly in your terminal. It features vim-style navigation, formula support, visual selection, search, undo/redo, and a command mode — all without leaving the terminal.
Installation
Using Go
go install github.com/maaslalani/sheets@main
Download Binary
Download a prebuilt binary from GitHub Releases.
Verify Installation
sheets --help
CLI Usage
Launch the TUI
sheets budget.csv
Read from stdin
sheets <<< "ID,Name,Age
1,Alice,24
2,Bob,32
3,Charlie,26"
Or pipe from another command:
cat data.csv | sheets
Read a Specific Cell
sheets budget.csv B9
# Output: 2760
Read a Cell Range
sheets budget.csv B1:B3
# Output:
# 1200
# 950
# 810
Modify Cells (Non-Interactive)
# Set one cell
sheets budget.csv B7=10
# Set multiple cells
sheets budget.csv B7=10 B8=20
Navigation Keybindings
Basic Movement
Key
Action
h, j, k, l
Move left, down, up, right
gg
Jump to top
G
Jump to bottom
5G
Jump to row 5
gB9
Jump to cell B9
0
Jump to first column
^
Jump to first non-empty column in row
$
Jump to last non-empty column in row
H / M / L
Jump to top / middle / bottom visible row
ctrl+u / ctrl+d
Move half page up / down
View Alignment
Key
Action
zt
Align current row to top of window
zz
Align current row to middle of window
zb
Align current row to bottom of window
Search
Key
Action
/
Search forward
?
Search backward
n
Repeat last search (forward)
N
Repeat last search (backward)
Marks & Jump List
Key
Action
ma
Set mark a at current cell
'a
Jump to mark a
ctrl+o
Move backward through jump list
ctrl+i
Move forward through jump list
Editing Keybindings
Insert Mode
Key
Action
i
Edit current cell
I
Edit from start of cell
c
Clear cell and start editing
ESC
Leave insert / visual / command mode
enter
Commit and move down
tab
Commit and move right
shift+tab
Commit and move left
ctrl+n
Commit and move down
ctrl+p
Commit and move up
Row Operations
Key
Action
o
Insert row below and start editing
O
Insert row above and start editing
dd
Delete current row
Copy / Cut / Paste
Key
Action
y
Yank (copy) current cell
yy
Yank current row(s)
x
Cut current cell or selection
p
Paste current register
Undo / Redo
Key
Action
u
Undo
ctrl+r
Redo
U
Undo all changes
.
Repeat last change
Visual Mode
Enter visual mode with v (cell selection) or V (row selection).
Key
Action
v
Start visual cell selection
V
Start visual row selection
=
Insert formula after selected range (e.g., =|(B1:B8))
Command Mode
Press : to open the command prompt.
Command
Action
:w
Save file
:w path.csv
Save to a new file
:e path.csv
Open another CSV file
:q
Quit
:wq
Save and quit
:goto B9
Jump to cell B9
:B9
Jump to cell B9 (shorthand)
Common Patterns
Create a New CSV and Edit It
# Create a CSV with headers
echo "Name,Amount,Category" > budget.csv
sheets budget.csv
Pipe CSV Data and Edit
# Generate CSV from a database query and edit in sheets
psql -c "COPY (SELECT * FROM sales) TO STDOUT WITH CSV HEADER" | sheets
Script: Update a Cell Programmatically
#!/bin/bash
# Update Q4 value in financial report
sheets report.csv D4=95000 D5=102000 D6=88000
echo "Updated Q4 values in report.csv"
Script: Extract a Range for Processing
#!/bin/bash
# Extract column B rows 1-10 and sum them in bash
values=$(sheets data.csv B1:B10)
total=0
while IFS= read -r line; do
total=$((total + line))
done <<< "$values"
echo "Total: $total"
Script: Read a Specific Cell in a Shell Script
#!/bin/bash
# Get current budget total from spreadsheet
budget_total=$(sheets budget.csv C15)
if [ "$budget_total" -gt 10000 ]; then
echo "Budget exceeded!"
fi
Go Integration Example
If building a Go application that generates CSV for use with sheets:
package main
import (
"encoding/csv"
"fmt"
"os"
"os/exec"
)
func createAndOpenSpreadsheet(data [][]string, filename string) error {
// Write CSV data
f, err := os.Create(filename)
if err != nil {
return fmt.Errorf("creating file: %w", err)
}
defer f.Close()
w := csv.NewWriter(f)
if err := w.WriteAll(data); err != nil {
return fmt.Errorf("writing CSV: %w", err)
}
w.Flush()
// Open in sheets TUI
cmd := exec.Command("sheets", filename)
cmd.Stdin = os.Stdin
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
return cmd.Run()
}
func main() {
data := [][]string{
{"Month", "Revenue", "Expenses", "Profit"},
{"January", "12000", "8500", "3500"},
{"February", "13500", "9200", "4300"},
{"March", "11800", "8900", "2900"},
}
if err := createAndOpenSpreadsheet(data, "monthly_report.csv"); err != nil {
fmt.Fprintf(os.Stderr, "Error: %v\n", err)
os.Exit(1)
}
}
Go: Read a Cell Non-Interactively
package main
import (
"fmt"
"os/exec"
"strings"
)
func readCell(csvFile, cell string) (string, error) {
out, err := exec.Command("sheets", csvFile, cell).Output()
if err != nil {
return "", fmt.Errorf("reading cell %s: %w", cell, err)
}
return strings.TrimSpace(string(out)), nil
}
func readRange(csvFile, cellRange string) ([]string, error) {
out, err := exec.Command("sheets", csvFile, cellRange).Output()
if err != nil {
return nil, fmt.Errorf("reading range %s: %w", cellRange, err)
}
lines := strings.Split(strings.TrimSpace(string(out)), "\n")
return lines, nil
}
func main() {
total, err := readCell("budget.csv", "B9")
if err != nil {
fmt.Println("Error:", err)
return
}
fmt.Println("Budget total:", total)
values, err := readRange("budget.csv", "B1:B6")
if err != nil {
fmt.Println("Error:", err)
return
}
fmt.Println("Monthly values:", values)
}
Tips for AI Agents
Suggesting Sheets for CSV Tasks
When a user wants to view or edit CSV files in the terminal, suggest sheets:
# Instead of cat data.csv
sheets data.csv
# Instead of awk/sed edits for simple changes
sheets data.csv B3=new_value
Formula Insertion Workflow
- Navigate to the column where you want the formula
- Enter visual mode with
v
- Select the range (e.g., B1:B8)
- Press
=to insert formula after the selection:=|(B1:B8)
Efficient Navigation (Vim Users)
Sheets uses vim-style navigation — users familiar with vim can be productive immediately:
gg/Gfor top/bottom
hjklfor movement
i/cfor insert modes
ddto delete rows
u/ctrl+rfor undo/redo
/for search
Troubleshooting
sheets command not found
# Ensure Go bin directory is in PATH
export PATH=$PATH:$(go env GOPATH)/bin
# Or install again and verify
go install github.com/maaslalani/sheets@main
which sheets
File Not Saved After Editing
Use :w in command mode to save, or :wq to save and quit. Just pressing q or ctrl+c quits without saving.
TUI Rendering Issues
Sheets relies on terminal capabilities. If the display looks broken:
- Ensure your terminal supports 256 colors or truecolor
- Try a different terminal emulator (iTerm2, Alacritty, Ghostty, WezTerm)
- Check
TERMenvironment variable:echo $TERM
Reading Non-CSV Files
Sheets is designed for CSV format. Convert other formats first:
# Excel to CSV (using Python)
python3 -c "import pandas as pd; pd.read_excel('data.xlsx').to_csv('data.csv', index=False)"
sheets data.csv
Large Files Performance
For very large CSV files, navigate directly to specific cells rather than scrolling:
:goto A1000
or press 5G to jump to row 5 directly.