Extract text from Calculator and tax files (CALC)
To convert CALC Tax files to another format, you need SFR Calculator or other Text software.
To convert other file formats to the "Calculator Tape Log" file type, you need software like SFR Calculator or a similar tool.
The .CALC file extension primarily represents a Calculator tape log file created by SFR Calculator. This file stores a history of mathematical calculations in standard UTF-8 text, allowing users to review previous inputs and results. However, .CALC files are also used by the Skatteverket (Swedish Tax Agency) as tax calculation files (often saved as raw HTML data or error pages) and by the CAL3D Animation Library to store character animation data for software like Autodesk MotionBuilder.
The main disadvantage of the .CALC format is its obscure, fragmented nature. Because the extension is shared across entirely unrelated software, standard operating systems rarely know how to open it out of the box. You cannot easily send a .CALC file to a colleague without them encountering an 'unsupported file' error. Furthermore, animation .CALC files are often proprietary and require an expensive software subscription to read.
If you need to share a calculator tape or a tax receipt, the best target formats are TXT or PDF. These standard formats ensure the recipient can open the file on any device without specialized tools. For the 3D animation variants, converting to widely supported formats like FBX or OBJ is ideal but often requires the original host software.
Because the .CALC extension lacks a universal standard, ordinary online converters usually fail to process it. Proprietary 3D variants may only export correctly using the original application. However, convert.guru offers a practical workaround. Just drag and drop your file to see what it is and convert it if supported. Since the most common .CALC files rely on standard UTF-8 or HTML encoding, you can instantly inspect the raw text, view embedded data, and convert it to a standard format whenever possible.
Convert.Guru analyzes your CALC file, detects the exact format, and lets you read the text inside.
Users also converted ODS, XLSX, XLS, TOC, FMF, SBP and PDF files.
If you want to convert CALC file to PDF, XLS, XLSX, XLSM, XLSB, ODS, CSV, TSV, TAB, DIF, SLK or WK1, you can use SFR Calculator or similar software from the "Calculator Tape Log Storage" category. In the File menu, look for Save As… or Export….
To convert WQ1, XLSM, NOTES, QPW, WK3, WB2, WKS, XLSB, 123, XLS, WB1 or XLSX files to CALC, try SFR Calculator or another comparable tool in the "Calculator Tape Log Storage" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our CALC converter.