Utility converters old
Excel
spreadsheets (.xls, .xlw) to plain text file.
Rows as lines with cells separated by tabs (\t, U+0009).
A form feed (\f, U+000C) is emitted between sheets.
For Linux and FreeBSD.
usage: xls2txt [-n sheetnum|-A] [-f] file.xls [X:X]
xls2txt -l file.xls
X:X Cell range (eg. A1:C5, D2:E)
-l List sheets
-n num Select sheet
-A All sheets (\f separated)
-f Don't try to format numbers