ooxml2odt: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/ooxml2odt - from package: unoconv

You may install the required package with command apt-get install {package}

Error in other languages:
ooxml2odt: bevel nie gevind nie
ooxml2odt: comandă negăsită
ooxml2odt: comando não encontrado
ooxml2odt: commande introuvable
ooxml2odt: command not found
ooxml2odt: käsku ei ole
ooxml2odt: không tìm thấy lệnh
ooxml2odt: komanda nerasta
ooxml2odt: Kommando nicht gefunden.
ooxml2odt: kommandot finns inte
ooxml2odt: komut yok
ooxml2odt: nie znaleziono polecenia
ooxml2odt: níor aimsíodh an t-ordú
ooxml2odt: no se encontró la orden
ooxml2odt: no s'ha trobat l'ordre
ooxml2odt: opdracht niet gevonden
ooxml2odt: parancs nem található
ooxml2odt: perintah tidak ditemukan
ooxml2odt: príkaz nenájdený
ooxml2odt: příkaz nenalezen
ooxml2odt: команда не найдена
ooxml2odt: командата не е открита
ooxml2odt: 命令找不到
ooxml2odt: コマンドが見つかりません