CSV to Excel Offline

CSV to Excel Offline opens a CSV or TSV document selected through Android's
system file picker, shows a phone-friendly table preview, and creates an Excel
XLSX workbook on the device.

Review the detected row count, column count, delimiter, blank rows, and exact
duplicate rows before exporting. Tap a preview cell to read its complete value,
including long notes that do not fit in the table.

Standard conversion preserves every row and writes cell values as text. This
keeps identifiers such as 00041 from losing their leading zeros. The generated
workbook includes a styled header row, frozen header, column widths, and a table
filter.

Clean & convert creates a second workbook after removing fully blank rows and
exact duplicate rows. The original selected document is never changed.

Supported input:

- CSV and TSV documents
- Comma, tab, semicolon, and pipe delimiters
- UTF-8, Windows-1252, Shift_JIS, and UTF-16LE selections
- Files up to 50 MB, 100,000 rows, and 256 columns

Output:

- Excel XLSX workbook
- Save through Android's document interface
- Share through Android's standard share chooser

Selected documents and generated workbooks are processed locally. The app does
not require an account or request camera, location, or broad storage access.