4
Sobolsoft
121
Shareware
It helps you convert one or more Excel XLSX files into XLS format.
Okdo Software, Inc.
9
Shareware
Preserves the original layout of your PDF in an editable excel XLS, XLSX.
4
PTC
4
Freeware
PTC Mathcad Express is free-for-life engineering math software.
Okdo Software, Inc.
Shareware
Allows you to batch convert xls/xlsx to various image formats.
4
XLS-CONVERTER.COM
659
Shareware
Convert Excel files into DBF, XML, CSV, SQL, and other formats.
Birdie Software
57
Shareware
Easily read XLSX files with the help of XLSX to XLS Converter.
36
SysTools Software
126
Shareware
SysTools XLSX Recovery is a reliable solution to recover corrupted XLSX files.
Corrupt XLSX File Recovery
Shareware
Perform quick corrupt XLSX file recovery by bringing into use XLSX Recovery tool.
WindowIndia
11
Shareware
Converts multiple xls and xlsx files into xlsx, xlsb and xls files.
The C# XLSX Library
Shareware
Create xlsx files in C# as well as convert xlsx to xls using C#.
BitRecover
Shareware
Upgrade your XLS file to XLSX and downgrade XLSX to XLS without Excel app installation.
8
Parametric Technology Corporation
119
Shareware
Mathcad: Solve and document your most complex engineering calculations.
2
PTC
110
Commercial
This contains ebooks that help us solve Civil Engineering problems on Mathcad.
1
PTC
28
Freeware
Extension Pack can be used for current Mathcad 12 Extension Pack licensees only.
Datgel
4
Shareware
The Output Tool version 2 brings a new dimension to gINT Output.
