73I Converter

Convert TI-73 screenshots (73I) online for free


Drop or upload your .73I file
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How to convert your 73I file

  1. Click the "Select File" button above, and choose your 73I file.
  2. You'll see a preview.
  3. Click the "Convert file to..." button to save your file in the format you want.

Convert 73I to another file type

The converter easily converts your 73I screenshots to various formats - free and online. No TI Connect or or other Raster Image software needed.

  • 73I to JPG
  • 73I to PDF
  • 73I to PNG
  • 73I to GIF
  • 73I to BMP
  • 73I to TIFF
  • 73I to TIF
  • 73I to ICO
  • 73I to PSD
  • 73I to GRB
  • 73I to 82I
  • 73I to GBR

Convert a file to 73I

The converter also works in reverse, so you can convert other "Calculator Screenshot File" formats to 73I without using software like TI Connect or a similar tool.

  • RAW to 73I
  • PNG to 73I
  • AI to 73I
  • NEF to 73I
  • PSB to 73I
  • DNG to 73I
  • GIF to 73I
  • EPS to 73I
  • JPG to 73I
  • ARW to 73I
  • PDF to 73I
  • LFF to 73I

About 73I files

The .73I file is a proprietary image format used exclusively to store screenshots captured from a Texas Instruments TI-73 graphing calculator. These files are typically transferred to a computer using the TI Connect software via a specialized USB or serial cable. The primary disadvantage of the .73I format is its closed, non-standard nature. Web browsers, standard image viewers, and document editors cannot read it natively. Relying on this format locks your data inside a legacy ecosystem, forcing you to install specific desktop utilities just to view a basic 96x64 pixel image. To make these screenshots usable in school reports or web pages, you must convert the .73I file to standard raster formats like PNG, JPG, or GIF. Converting to PNG is highly recommended because it perfectly preserves the sharp, high-contrast pixels of the calculator screen without adding compression artifacts. Because this is a highly specialized calculator format, standard online image converters will almost always fail to process it. Usually, only the original Texas Instruments software can decode the raw pixel data reliably. However, you can use convert.guru as your pragmatic workaround. Just drag and drop your file to identify the format, view its internal structure, and convert it when possible. If our analysis detects standard image data embedded within the proprietary wrapper, viewing or conversion may still be possible.

Use Convert.Guru to open and convert your 73I file.

Users also converted 73P, 73C and 73D files.


FAQ

If you want to convert 73I file to WEBP, CUR or PSB, you can use TI Connect or similar software from the "Calculator Screenshot Storage" category. In the File menu, look for Save As… or Export….

To convert SVG files to 73I, try TI Connect or another comparable tool in the "Calculator Screenshot Storage" category.



The 73I Converter Story

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 73I converter.