![John Dudley on Twitter: "Repeating one of my favourite productivity tips for new followers. A PowerPoint file (pptx) is actually a Zip file in disguise. If you simply change the .pptx file John Dudley on Twitter: "Repeating one of my favourite productivity tips for new followers. A PowerPoint file (pptx) is actually a Zip file in disguise. If you simply change the .pptx file](https://pbs.twimg.com/media/ErepVF9XcAQ_L6d.jpg)
John Dudley on Twitter: "Repeating one of my favourite productivity tips for new followers. A PowerPoint file (pptx) is actually a Zip file in disguise. If you simply change the .pptx file
![Collection of vector icons. Sign Download. File format extensions icons. PDF, MP3, TXT, DOC, DOCx, ZIP PPTx XLSx JPG PSD fb2 AVI Stock-Vektorgrafik | Adobe Stock Collection of vector icons. Sign Download. File format extensions icons. PDF, MP3, TXT, DOC, DOCx, ZIP PPTx XLSx JPG PSD fb2 AVI Stock-Vektorgrafik | Adobe Stock](https://as2.ftcdn.net/v2/jpg/03/09/31/55/1000_F_309315578_ZXHbyhqRibT9hldQ0lzAz7EjIeTj1Y8R.jpg)
Collection of vector icons. Sign Download. File format extensions icons. PDF, MP3, TXT, DOC, DOCx, ZIP PPTx XLSx JPG PSD fb2 AVI Stock-Vektorgrafik | Adobe Stock
![Spaten, Uhr, Ingenieur, pptx, Power Point-, Zip-, Druckluft-, docx, xlsx, Excel-Datei, css, APK Android, Symbol, Vector, Design, flach, collectio Stock-Vektorgrafik - Alamy Spaten, Uhr, Ingenieur, pptx, Power Point-, Zip-, Druckluft-, docx, xlsx, Excel-Datei, css, APK Android, Symbol, Vector, Design, flach, collectio Stock-Vektorgrafik - Alamy](https://c8.alamy.com/compde/papdx1/spaten-uhr-ingenieur-pptx-power-point-zip-druckluft-docx-xlsx-excel-datei-css-apk-android-symbol-vector-design-flach-collectio-papdx1.jpg)